I'd like to expand on my previous answer. When I was doing my research, I came across the Winkler's Grove Cemetery data before I came across the Eckard family tree. I, too, was concerned about the age difference between Abe and Pink and whether they were father and son or were related in some other way. Fortunately, the Eckard family tree resolved that question.
Also, since Pink was our great-grandfather, I can only wonder what our kinship is.
Anyway, the main reason for this second "answer" is to provide more information, even though you might already have it. It's just that the brother who purchased the Winkler land in 1779 ((350 acres on the South Side of Drawing Creek on the Catawba River) was Conrad Winkler. Apparently, his father was Hans Conradus or Coonrod, who stayed in Germany with his wife Kunigunda Steinhart Winkler. One of Conrad's brothers was "Thomas" who is sometimes referred to as "Hans Domas "Thomas." Conrad, himself is sometimes referred to as "Conradt" or one on site as "Thomas Conradt." Like the name change in 1749, or later, from Hoffman to Huffman for my ancestors on my father's father's side, I suspect that given names for the Winklers might have been Anglicized when they arrived in Philadelphia in 1753, along with possibly changing Winckler to Winkler at that time..
Also, while I'm thinking about it ... in case you don't already know ... one of our ancestors had a brother or a nephew, also named Winkler, who ended up as a lawyer, judge, and politician in Texas and an officer in the Civil War who led the Texas Navarro Rifles, reportedly the only Texas unit that fought under Rober E. Lee. During the war he advanced to Lt. Colonel and was shot in the leg. The reason I bring him up is that Winkler County Texas was named after him. His name was Clinton McKamy Winkler and he was born in 1820.