Henry "Hank" Lawler was one of the senior engineers with the Utah Construction Company.  Due to the aging of the Wattis clan, Lawler was designated to represent them in the field.  He worked on the bid estimate for the Hoover Dam on behalf of Utah Construction.  This was later combined with the estimates of Frank Crowe from Morrison-Knudsen to produce the final bid of $48,890,955.  Later at the dam site he helped to oversee the construction activity.  Initially official correspondence from the Six Companies headquarters in San Francisco was addressed to Lawler, but eventually he was relegated to a lesser role, as Frank Crowe emerged as the Superintendent in charge.  Even though Lawler was some 20 years senior to Frank Crowe, it was Crowe who got the nod to be the onsite overall head of construction.  Perhaps as a consolation, the Government Junction of the construction railway was renamed Lawler Junction.