William Percy Costello
M, #4942, b. 26 April 1884
| Father | William Costello b. 12 Jun 1836, d. 18 Feb 1921 |
| Mother | Sarah Jane Schell b. 26 Feb 1843, d. 15 May 1911 |
William Percy Costello was born on Saturday, 26 April 1884 at Reach Twp., Ontario Co., Ontario, Canada. He witnessed the marriage of Alvina Wilson and Herbert Costello.