His parents are listed on this marriage record. There are births of their children on familysearch.org as well. You didn't really indicate what exactly you are looking for.
Ontario Marriages, 1869-1927
Citing this Record "Ontario Marriages, 1869-1927," index, FamilySearch (https://familysearch.org/pal:/MM9.1.1/FMJ8-Q1D
William Boal
Age: 31 Birth (Est) 1852
Father Samuel Boal Mother Agnes Boal
Marriage 01 Feb 1883 Ingersoll, Oxford, Ontario, Canada
Spouse Ellen Orr
Age: 25 Birth (Est) 1858
Father Robert Orr Mother Mary Ann Orr
Registration Number: 009115
GS Film number: 1869763
Digital Folder Number: 004529139
Image Number: 00427
