I mowed yards in the early/mid 60's. Did enough to loan dad 250.00 for a down payment on a new work pickup after about a year or so of mowing yard @ 2 bucks each. Lot size was about 1/4 acre but the houses were small. I still live close to the neighborhood where I lived as a kid and the houses were mostly about 1100 sq ft. St. Augustine isn't exactly easy to mow either when it's high (6" is high) unless the mower is self propelled...and mine wasn't.