TY - GEN N2 - The donor's father was in the oil business beginning in the 1920s in Oklahoma and Texas. He was in the transportation end of the business. According to an interview with the donor, big, heavy boilers provided the steam for the drilling rig. These were so heavy that they required a team of mules to move them. It is believed that these photographs reflect this activity. AB - The donor's father was in the oil business beginning in the 1920s in Oklahoma and Texas. He was in the transportation end of the business. According to an interview with the donor, big, heavy boilers provided the steam for the drilling rig. These were so heavy that they required a team of mules to move them. It is believed that these photographs reflect this activity. T1 - Heavy smoke from boilers and the team of horses or mules DA - 1920 DA - circa 1920 AU - Unknown L1 - https://library.usi.edu/record/1529675/files/3767.jp2 PB - University of Southern Indiana LA - eng PY - 1920 PY - circa 1920 ID - 1529675 L4 - https://library.usi.edu/record/1529675/files/3767.jp2 KW - Mining KW - Non-motorized Vehicles KW - Business and Industry KW - Nature and the Environment KW - People and Communities KW - Photographs KW - Related Materials -- 1901-1950 KW - Special Collections KW - Transportation TI - Heavy smoke from boilers and the team of horses or mules Y1 - 1920 L2 - https://library.usi.edu/record/1529675/files/3767.jp2 LK - https://library.usi.edu/record/1529675/files/3767.jp2 UR - https://library.usi.edu/record/1529675/files/3767.jp2 ER -