From what you wrote, it appears that you have this information already. On the chance that you don't, here's the relevant material from J. A. Comstock's book (the only source I have). Just out of curiosity, tell me please whether any of this is new to you.
Family 1932 7705. JOSEPH10 COMSTOCK (Alpheus9, William8, Levi,7 Lydia,6 William,5 Thomas,4 Samuel,3 Samuel,2 William1) born Alexandria Bay, N. Y., Jan. 18, 1849; died Syracuse, N. Y., July 21, 1904; married, Alexandria Bay, Sept. 18, 1865, Lucy Caroline Dobbins, b. E. Canada (Ont.), Feb. 2, 1846; d. Alexandria Bay, N. Y., July 16, 1909, dau. of Andrew P. and Elizabeth LaVoucher (Warren) Dobbins.
Joseph Comstock was a boat builder and violinist.
9252.GEORGE11 EDMUND, b. Oswego, N. Y., Oct. 14, 1866; m. April 6, 1887, Luella K. Patterson. Family 2169.
9253.HENRY DE ESTON, b. Alexandria Bay, N. Y., Oct. 5, 1868; d. Utica, N. Y., Aug. 7, 1923; m. (1st) Caroline Page; m. (2nd) Sept. 6, 1901, Leah LaTour. Family 2170.
9254.LILLIAN MABEL, b. Philadelphia, N. Y., Nov. 29, 1870; d. Hammond, ???), 1874.
9255.FRANCIS L., b. Dec. 17, 1872; d. April 4, 1874.
9256.JOHN FRANKLYN, b. Alexandria Bay, N. Y., May 11, 1875; m. Aug. 15, 1896, Gertrude Jackson. Family 2171.
9257.BELLE HAYDEN, b. Hayden's Island, Alexandria Bay, N. Y., May 6, 1877; m. Alexandria Bay, Oct. 23, 1897, Charles E. Duclou. Res. (1944) 1 Holland St., Alexandria Bay, N. Y.