I finally located the book Black Marriages in St Mary's County by Agnes Kane Callum in St. Marys College. I did not see who you were looking for. Following are all of the Gordons and Tuckers listed in the book.

Gordon, James, 26, col, m. Kate Holly, 18, col, Dec 1, 1877

Gordon, James Henry, 24, blk, son of Alex, & Cath. Gordon, m. Alice Barnes, 19, blk, daughter of James & Charlotte Barnes, Jan. 5, 1894, Fr. Giraud, SJ, both of Park Hall, CH

Gordon, John Grovner, 22, blk, son of Alex. & Cath. Gordon, m Ellen Barber, 20, blk, daughter of Michael & S. Barber, July 14, 1894, Fr. Giraud, SJ, Ch, St. Ignat. Rcds.

Gordon, John Henry, 24, dark, m. Teresa Jones, 35, dark, Feb. 14, 1890, CH

Gordon, William Henry, 23, blk, m. Eliz. Thomas, 27, blk, July 9, 1899, St. Joseph RCC. CH

Tucker, Arnolk, col. ml. Celestia Williams, col, July 22, 1884.

Hope this helps,

Betty