Ferdinand Yeska’s family tree reads like the history of modern sanitation, beginning in 1909 when he emigrated from Poland to Nazareth, Pa. Always able to see a niche and fill it, Yeska stood over outhouse pits cleaning one or two a day with a long-handled shovel. The septage, transported in open barrels in a horse-drawn wagon, was spread on his farm outside of town.Although established in 1917, it wasn’t until 1960 that the pumping business became Henry Yeska & Son Inc. Today, a 2009 Peterbilt with 2,800-gallon aluminum tank and Wittig pump is the latest truck to replace the horse,
