Harry Williamson was the son of Mr. Robert. and Mrs. Mary Ann Williamson, 82 Mold Rd, Buckley. Robert John Williamson had married Mary Ann Welch in 1891. Henry (Harry) was born in 1893
The 1911 census records the family at at 2 Jubilee Villas other children were Joel, Minnie, Edith, Elizabeth, and Robert Earnest. Before the war Henry was a coal miner.
Harry enlisted in Buckley and his Medal index card (on Ancestry.co.uk) tells us that his first Theatre of war was in France and he entered it on the 2nd December 1915.
The following notice appeared in the North Wales Coast Pioneer, July 27 1916
Signaller Harry Williamson, Royal Welsh Fusiliers, who has been wounded, is in hospital in Leicestershire. He is the son of Mr. and Mrs. Robert Williamson, Jubilee Villas, Mold-road, Buckley
This may indicate that Harry survived the Somme but died a year later at Ypres.
A Pension Index card indicates that he was reported missing before being deemed to have been killed in action on the 31st July 1917 (at Ypres in what became known as the infamous Battle of Passchendaele). His Mother, Mary Ann Williamson of 82 Mold Road Buckley, was awarded a pension of 12/- per week from the 16th April 1918.