I am working on Pollard family genealogy and have a gguncle Collins Lyon Pollard b. 1864, m. Anna M. Adams b. ?. Anna is supposed to be a descendant of John Quincy Adams. How she is descended, I do not know. They were from Broome County, NY, and lived several other places till settling in NM. There is a connection of the Pollards to the Daggetts.
Is this one of your relatives? If so I'd like to exchange info.