There were also some Dolder's in Ilford Essex, my parents. My father was born in Ontario, Canada but his parents were from the east end of London, Stepney I believe, maybe they were the Dolders you had heard of, there were five sons. The parents emigrated to Canada in 1907 with one son, had two while there, including my father, and two more after returning in about 1915 and bought a house in Newbury Park, Essex I have the precise dates somewhere including the ships they went on. Anyway, their son, my father, married and bought a house in Chadwell Heath, Ilfordin 1936 and I was born there but have lived in Massachusetts, USA for the last 48 years. My two brothers are still in Essex - Hockley and Marks Tey plus there is a cousin in Shropshire. I have scattered the name even further with sons in Florida, Oregon and the youngest back in Southampton, UK.plus a grandson in New Hampshire. If you ever make a connection to your Dolder group please let me know, I have always been curious as there must be a connection somewhere. As far as my research goes, it seems the name originated in Switzerland but I have never found a link to that either. Now I'll search for my family tree, which I have not worked on for quite a while.