Hi Dick, I found a Sumner C. Lang, but don't have a marriage reference and don't know your time frame. However, this is what I've found so far. Source: A Genealogy of the First Five Generations in America of The Lang > Family. (etc, etc) by Howard Parker Moore page 88 Sumner C LANG born 1858, res. Lynn, MA son of Calvin LANG (1822-1860) perhaps born in No Yarmouth, ME (Moore not clear on this) son of Levi LANG b. 11/15/1782, in the new home in the wild part of Sanbornton m. Julia Lane, 5/23/1809 b. Kensington, NH d. 12/30/1864 age 57 d at North Yarmouth, ME at age of 74 son of Lowell LANG, born Hampton Falls, NH 9/15/1754, died Sanbornton 12/25/1822. m. Susannah Prescott, dau of Major William Prescott and Susanna Sanborn. He and his wife Susannah lie buried in a small cemetery not far from the home site,(the Salmon Brook section of Sanbornton) but their grave stone is now in the Tilton cemetery, LANG row. 9 children (What is with these people and 9 children?) son of William LANG, bapt with sister ANN at South Church Portsmouth, NH 7/12/1724 m. Sarah STANYAN, daughter of John STANYAN son of WIlliam LANG, born about 1698 m. Susannah SAVAGE 7/7/1721, daughter of John SAVAGE and Sarah JONES