Simon Harrison was the son of Richard Harrison and Mary Harrison (nee Kelly) - His parents were married in 1882 at St James’s RC. Bootle
 
1891 Census: 55 Bangor Street, Walton on the Hill, Bootle - Parents with Mary E and Esther
 
1901 Census: 55 Bangor Street, Bootle – Parents with Mary E, Simon, Margaret, Winifred and Felix - Simon was born 1893 in Bootle
 
1911 Census: 55 Bangor Street, Bootle - Mary is a widow – with Simon (a Plumbers labourer) and Margaret, Winifred and Felix – Mary had 11 children born with 5 still living  
 
He enlisted in Bootle and formerly served with the 3rd King’s Regiment, service number 85476.