David E. Johnson wrote that Cordelia and Thomas had one child, William Robert Harker; and that after Cordelia's death, Thomas Harker m. Mary Ann Patterson (b. 28MAR1871, d. Randall St., Oakville, Halton Co., ONT 1FEB1945, bur. St. Jude's Cem., Oakville, Halton Co., ONT.) He added some dates for Thomas' parents: John Harker, 1830-1912, and Mary Oldenby (1828-1914.) Beyond that, there was nothing more.