delivered the opinion of the court:
Frank Mathias, son of the plaintiff in error, was injured while working in the mine of the defendant in error on the 28th day of September, 1920, and on that date died as the result of such injury. The deceased and defendant in error were working under the Workmen’s Compensation act of this State and subject to its provisions. A hearing was had before the arbitrator and an award entered in favor of the plaintiff in error for $7 per week for a period of 235 weeks, or a total of $1650, being the minimum under paragraph (c) of section 7 of said act. This award was sustained on review by the Industrial Commission. The circuit court of Macoupin county set aside the award.
Two questions are presented by the assignment of errors for review by this court: First, dependency; and second, did the accident arise out of and in the course of the employment of the deceased.
As to the question of dependency, the evidence in the record shows that the deceased was eighteen years of age on April 18, 1920; that the petitioner is the father of the deceased and at the time of the accident in question had *542nine children living at home; that the oldest boy, Steve, •was woidcing in the mine of the defendant in error and became twenty-one years of age on August 21, 1920; that no other members of the family were old enough to work and none of them were working; that the petitioner, until May, 1920, worked in the mine of the defendant in error, but on account of sickness and inability to work had not worked since that time; that Steve, at the time of the accident, had taken the place of the plaintiff in error in the mine; that after becoming of age Steve paid $48 per month to his mother for board; that the father earned prior to May, 1920, when the mine worked practically full time, about $200 per month and in slack time about $90 per month; that Steve, after becoming of age, earned practically the same amount as the father; that the deceased son, when the mine was working full time, had an earning capacity of about $60 per month; that the entire family expense was approximately $200 per month; that the living expenses of the father and mother, without the children, would be in the neighborhood of $75 per month; that after Steve became of age he collected his own wages and spent the same for his own use except the $48 above stated, and that the deceased son lived at home with his father and mother and contributed in the neighborhood of $60 a month to the use and support of the family. Plaintiff in error, at the time of the death of Frank, was receiving about $108 per month from the two boys.
Dependency, and the extent thereof, are questions of fact for the Industrial Commission, and the courts will not interfere when such facts are controverted, unless it can be said that the finding of the commission is against the manifest- weight of the evidence. (Otis Elevator Co. v. Industrial Com. 302 Ill. 90; Keller v. Industrial Com. id. 610.) The test for determining dependency is whether the contributions of the deceased were relied upon by the dependent for his means of living as determined by his position *543in life, or whether dependent was to a substantial degree supported by the employee at the time of the employee’s death. (Pratt Co. v. Industrial Com. 293 Ill. 367.) A child contributes to the support of its parents, within the meaning of the Compensation act, when it contributes a substantial sum to the support of the family, although this sum is less than the actual cost of its support and maintenance where the child is a minor or is in a condition to demand legal support from its parent. (Richardson Sand Co. v. Industrial Com. 296 Ill. 335.) The uncontradicted evidence in this case shows that in May prior to the accident in question the father had ceased working in the mine or at any other employment on account of poor health, and that at the time of the accident the oldest son, Steve, had become twenty-one years of age and had taken his father’s place in the mine, and that the deceased had contributed a substantial portion of his earnings to the support of the father as well as of the entire family. Under the tests laid down by this court the plaintiff in error was a dependent within the terms of the Compensation act.
As to the question whether or not the accident arose out of and in the course of employment, the evidence shows that the deceased was employed by the defendant in error as a trapper, whose duties are to open doors for drivers, kick latches for them, and give signals when it is safe for the driver to come ahead or warning to stop when it is unsafe for the driver to approach the door or station at which the trapper stays; that at the noon hour on the day of the accident Johnny Trojeck, a driver, asked the deceased to take the mule of another driver and go into the mine and bring some cars of coal from a place beyond the door where the deceased was trapping; that this was during the dinner hour and before the whistle had blown to go to work; that the deceased brought one car of coal to the parting and then went back for the second, all of which were cars in Trojeck’s run; that while bringing this second car to the *544parting the deceased lost control of the same and was thrown off and severely injured, from which injury he soon died. The testimony further shows that there was a custom in this mine to recruit the drivers of the cars drawn by mules that were used in hauling coal from the working face to the bottom of the mine from among the trappers, who learned to drive by making extra trips for the drivers; that after a trapper had driven as an extra driver he was then employed as a driver; that the deceased was one of the older trappers in the mine and had been driving for other drivers a few days a week for a period of three months previous to his death, and he had been authorized by the driver-boss, on at least one occasion, to act as an extra driver and had been paid as an extra driver for one shift; that other drivers then in the mine had acquired their previous experience in this way; that this custom or method of acquiring experience so as to be selected as a driver was acquiesced in by the officers of the mine and was known to exist by the driver-boss. On this occasion, however, the particular act done by the deceased was not authorized by the driver-boss nor was it done to his knowledge. It was done solely at the request of another driver.
An injury which can be seen to have been a natural incident of the work and to have been contemplated by a reasonable person as a result of the exposure occasioned by the nature of the employment may be said to arise out of the employment. (Edelweiss Gardens v. Industrial Com. 290 Ill. 459.) An accident happens in the course of employment if it occurs while the employee is doing what a man so employed may reasonably do within a time during which he is employed and at a place where he may reasonably be during that time to do that thing. (Weis Paper Mill Co. v. Industrial Com. 293 Ill. 284.) Whether or not the defendant in error or its agents in charge of the work knew of the practice of trappers to acquire their training as drivers by occasionally driving for other driv*545ers or driving on extra trips at the direction of the driver-boss being a controverted question of fact for the Industrial Commission, its finding in that respect will not be set aside by the courts unless against the manifest weight of the evidence. Keller v. Industrial Com. supra.
There is some testimony in the record tending to show caution and warnings by the driver-boss that certain trappers should not be permitted to drive. This, however, seems to have been confined to the newly employed trappers and not to those who had been trapping for the length of time that the deceased had been employed. There was also some evidence brought out on cross-examination that there was in this mine, at the time of the accident, some rule of employment governing the conduct of trappers when acting as drivers. The defendant in error, however, produced no testimony from the officers in charge of the mine as to this rule or its provisions. The most that can be said of it is, that as to newly employed trappers greater caution should be observed than as to the older ones; that as the time of employment lengthened a greater freedom existed as to the method of obtaining experience which would qualify a trapper to become a driver. The deceased was one of the first in line to be employed as a driver had not the fatal accident occurred.
While this accident occurred during the noon hour, when the mine was not in operation, nevertheless it was an act which the deceased might reasonably be expected to do at that time and in that place in order to acquire experience which would qualify him to be employed as a driver. To perform the act in question at the time and place would be less hazardous and less likely to result as it did than had he attempted to do the same act when the mine was in operation, and at this particular time he could leave his post of duty at the door and perform this act without violating his duty as a trapper. While it was done at the request of another driver, nevertheless it was in the *546nature of an act which might reasonably be expected of an apprentice or one endeavoring to learn to do another act of greater skill and thereby acquire promotion. When a custom exists, as shown here, to recruit drivers from trappers, and a rule prohibiting trappers driving—if there was such a rule—is not observed, and the officials of the company know of such failure to observe the same, violation of the rule does not bar compensation. (Sesser Coal Co. v. Industrial Com. 296 Ill. 11.) The evidence shows that the deceased had at times been paid extra for driving. This also would indicate knowledge and acquiescence on the part of his employer.
For the foregoing reasons the judgment of the circuit court is reversed and the cause remanded, with directions to quash the writ and confirm the award.
Reversed and remanded, with directiom.