There are two additional children, John & Laura, listed in Royce Gruwell's book, but there are no dates listed.
Sources
Gruelle Family of Harrison County, Kentucky compiled by Royce Allen Gruwell of Oxnard, California.
"United States Census, 1850," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MX32-GSG : 12 April 2016), William C Slade, Tate, Clermont, Ohio, United States; citing family 1341, NARA microfilm publication M432 (Washington, D.C.: National Archives and Records Administration, n.d.).
"United States Census, 1870," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M62N-JMZ : 12 April 2016), William Slade, Ohio, United States; citing p. 11, family 91, NARA microfilm publication M593 (Washington D.C.: National Archives and Records Administration, n.d.); FHL microfilm 552,716.
Is William your ancestor? Please don't go away! Login to collaborate or comment, or contact
the profile manager, or ask our community of genealogists a question.