I know of two Lounsbury men who married Tompkins women in Westchester Co., NY:
Descendants of Horace Bartlett Lounsbury
Generation No. 1 1.Horace Bartlett7 Lounsbury(Newman6, James5, Gideon4 Lounsberry, Gideon3 Lounsbury, Henry2, Richard1 Lounsberry) was born 7/24/1829.He married Anna Maria Tompkins. Children of Horace Lounsbury and Anna Tompkins Are: 2. I. Stephen Newman8 Lounsbury, b. 1/13/1859, Cortlandt, Westchester, NY. II. Phebe Powell Lounsbury, b. 10/19/1876, Bedford, Westchester, NY.
Generation No. 2 2.Stephen Newman8 Lounsbury (Horace Bartlett7, Newman6, James5, Gideon4 Lounsberry, Gideon3 Lounsbury, Henry2, Richard1 Lounsberry) was born 1/13/1859 In Cortlandt, Westchester, NY.He Married Annie Ophelia Sherwood. Children Of Stephen Lounsbury And Annie Sherwood Are: I. Sarah Anne9 Lounsbury, b. 9/26/1882, Cortlandt, Westchester, NY; M. George Jeffrey Shaw, 4/06/1905, Montrose, Westchester, NY. II. Addie Ophelia Lounsbury, b. 3/07/1885. III. Lewis Newman Lounsbury, b. 3/08/1887. IV. Elsie Ruth Lounsbury, Bb 11/17/1897. *****************************
Descendants Of John W. Lounsbury
Generation No. 1 1.John W.2 Lounsbury(Isaac1) was born ca 1825, and died 11/15/1887.He married Phebe Jane Tompkins. More about John W. Lounsbury: Burial: Amawalk Cemetery, NY Census: 1850, New Castle, NY Notes for Phebe Jane Tompkins:Daughter of Gilbert and Pauline (-) Tompkins. More about Phebe Jane Tompkins: Burial: Amawalk Cemetery, NY Child of John Lounsbury and Phebe Tompkins Is: 2. I. Eugene3 Lounsbury
Generation No. 2 2.Eugene3 Lounsbury (John W.2, Isaac1). He married Josephine Van Kleeck. Child of Eugene Lounsbury and Josephine Van Kleeck is: I. Jennie Geneva4 Lounsberry, M. Edward Robert Norwood.