Built out to his g-grandfather - still looking into records. They immigrated in the early 1900's - g-grandfather made the trip, but died less than 10 years later. Grandfather born in Lithuania. Father born in Chicago. Garry born in Chicago.Looks like paternal grandmother born in Odessa. Lots of records heading back to a black hole in Russia. May be a way to link from g-grandparent's children or grandparent's children. We'll see.
Maternal side looks to be easier, but ends up being harder. Still looking for grandparent info - found Charles Singer, but common name and being from NY and moving to Chicago - hard to pin his parents down. I'll keep hunting.