in referance to your posting,i too am relaterd to the surdam family of southern,n.y.( this particular branch i believe). there was a book written in 1909 by charles edward surdam abt.this branch with many ties to salisbury,conn. area. if you are in n.y.state check the local library or state documents. if i can be of further assist please contact. it`s good to hear of other surdam family members from the central and southern n.y. area/conn. lineage.if you do find a copy of the book my great grandmother was ada perry(m.williamson). she and her immediate family at that time were some of the last entries of the book in time for that printing.