Thomas was the son of Jesse T. and Maria Loper of Sag Harbor. Thomas born 1843 in Sag Harbor married Mary C. Talmage. Henry and Gilbert were there 2 sons. Thomas died young (not sure from what or where) Mary remarried later to William H. Payne.
Thomas had a younger brother Herbert C Loper, who was taken in by William H.Payne and his first wife Frances A.Payne when Jesse T and Maria died.
Other sisters and brothers:
Jesse T. Loper 1830 Maria L. Loper 1837-38 Maria J. Loper 1838-40 Louisa Loper1846 Sarah F. Loper 1843-1920 Anna M. Loper 1848-1873 NancyLoper 1852 Herbert C. Loper Sr. 1854-1911