It does say Lewis Lloyd (Morgan) son of Kenneth and Grace Morgan, so can't be Louisa Lloyd, unless the engraver, having already engraved the name Lewis, just decided it was a son.
There was a Louis Ll. Morgan with parents Evan and Grace at Northbrook Street, Toxteth in 1911. Surely the engraver didn't get the father's name wrong too?
FreeBMD has the death registration as Louis L Morgan, so definitely a male.
Lizzie