I am compiling a book on Shiawassee Co. Pioneers, and have this so far on your family.
RATHBUN/RATHBONE, DANIEL born 11 Apr. 1754, Stonington, New London Co., CT, married IN Pittsfield, MA to LUCY (COGSWELL) b. ca. 1757, Pittsfield, Berkshire Co., MA. Among their children: DYER W. b. 25 Oct. 1777, Berkshire, MA (following). Daniel died 30 Mar. 1806, Sempronius, Cayuga Co., NY and Lucy died ca. 1791, Rutland, VT.
Note: The complete RATHBONE family history may be obtained on the internet on familysearch.org.
RATHBUN, DYER W., son of DANIEL (preceding), married on 31 Jan. 1808, Marcellus, Onondaga Co., NY to MARY (LOWRY) born 12 Aug. 1788, Lysander, NY. Dyer died 5 Oct. 1857, Cohoctah, Livingston Co., MI and Mary died there 24 Mar. 1870. Dyer with his wife and 7 children arrived in 1835, and settled in Burns Twp., Shiawassee Co., MI. Known children, JOHN P. b. 15 Dec. 1809, Marcellus, NY (following); RUFUS C. 14 Apr. 1812, Marcellus, Onondaga Co., NY (following); ANN(A) b. ca. 1830, NY (m. 8 Jan. 1851, Shiawassee Co., William W. Coats, went to Cohoctah, MI). Also probably a daughter, MARY b. ca. 1825, NY (m. 24 Apr. 1842, Shiawassee Co., Noah D. Petteys, went to Van Buren Twp., Wayne Co., MI). In the 1850 census of Burns Twp., Dyer and Mary had only Ann(a), age 20,with them. See HANNAH (following). Widow, MARY, was in the 1860 census of Cohoctah, Livingston Co., MI with (daughter?) Hannah Warfle, age 41, b. NY, and Martha E. Warfle, age 1, b. Mich., in the household. Next door was daughter, Anna, with her husband, William Coats.
RATHBUN, JOHN P., son of DYER W. (preceding), married first on 1 Jan. 1833, Marcellus, NY to DELILAH (FOSTER), born ca. 1811. Known children, MARTIN b. ca. 1834, NY (following); MARY E. b. 1841 (d. 1843, Cohoctah, Livingston Co., MI). John P. married on 1 May 1843, Shiawassee Co., MI, to Mrs. LUCY POWERS, born ca. 1806, Massachusetts. John P. and Lucy were in the 1860 census of Burns Twp., Shiawassee Co. with DEXTER, age 15; LUCIUS E., age 13, both b. Mich., with them. Next door was MARTIN and family. Source: Marriage Index: Mich. & Wisc. 1830-1900.
RATHBUN, MARTIN, son of JOHN P. (preceding), was in the 1850 census of Shiawassee Twp., Shiawassee Co. in household of his uncle, RUFUS C. In the 1860 census of Burns Twp., Shiawassee Co., he had wife, CAROLINE, born ca. 1838, NY, and had GEORGE B., age 3/12, b. Mich., with them. He was next door to JOHN P. (called “MARK”).
RATHBUN, RUFUS C., son of DYER W. (preceding), was in the 1840 Census of Burns Twp., Shiawassee Co., MI. He married 12 Oct. 1837 to, SARAH “SALLY” (BAKER), born ca. 1822, Pennsylvania, daughter of Hosea and Sally. Known daughter, LUCY MARIA b. 15 Feb. 1839 They were in the 1850 census of Shiawassee Twp. with ELSIE AMANDA b. 18 Apr. 1843; CELIA A. b. 18 Oct. 1846 (m. Robert Fox); SALLY A. age 3/12, and listed last, nephew, MARTIN, age 16, all b. Mich. Rufus and a wife, ANGELINE, born ca. 1812, NY, were in the 1860 census of Shiawassee Twp. with ERVILLA, age 15; CELIA, age 12; ANN, age 10; SALLY AMELIA, age 9 (m. Wm. Cole, 16 Apr. 1870); RUFUS b. 20 May 1852 (went to Monroe, W. VA), in the household. Rufus C. died 26 Jan. 1862.