William Alfred Birch was born in 1886. He was the son of William Alfred Birch and Mary Ann Birch (nee Charnock). His parents were married in 1884 at St Mary’s C.of E. Church, Walton.
1901 Census: 368 Hawthorne Road, Bootle - Parents with children Edith B, William A, Polly, John P, Albert and Doris
1911 Census: 4 July Street, Bootle - Parents with Albert, Doris and Hilda (9 children born – 6 still alive)
William married Margaret Rutherford Baker in the West Derby Registration District in 1916
His brother John Parker Birch also fell.
Their parents were living at 37 Miranda Road, Bootle, after the war. 
His widow married Richard H Bevan in 1919. She and her husband were living at 153 Utting Avenue, Walton, after the war.