Their eldest son Andrew Sadowski and three daughters, Justina, Anna, and Sofia, all married and had children.
Two of their grandsons through son Andrew, James and Jacob Sadowski, became noted Kentucky pioneers.
[1] Sadowski worked to establish friendly relations with the Native Americans in the area, learning the Delaware (Lenape) and Iroquois languages.
[1] He became an Indian trader, traveling as far as Logstown, a village near present-day Ambridge, Pennsylvania.
His grave marker bears the following inscription: Whether or not he opened an Indian trading post on the shores of Lake Erie and gave his name to Sandusky, Ohio, here lies the greatest Polish frontiersman of colonial times, an organizer of Amity Township in 1719, and founder of the Sandusky family in America.