The 1892 birthdate for Harry in his obituary seems to have been a year out, as here is his baptism (from
www.familysearch.org):
Harry Thornicroft, son of Richard Thornicroft and Alice Anne Thornicroft
Baptised 18 Mar 1891
St Anne, Newton, Lancashire, England
His likely birth registration:
Harry THORNICROFT, Mar qtr 1891 Prestwich 8d 371
NB this is consistent with his age on his death registration of 65, in contrast the obituary which said he was 64.