My name is Sass, however, in Luthavania, the name was Kotke. It was changed due to the Tzar's conscription of the first born son into his army. The Sass name already had a first son conscripted. They kept the name when thay imigrated to USA. around 1860 to NY, VA and NC.
I have some info and names of Kotke families, plus some photos from 1800s in Lithuvania and NY/NJ.
As a side note David Coperfield the magician's real name is Kotke.