Aged 21 in 1889 at Farnworth when married Aged 20 in 1891, born Leeds (and Hephzibah 19) Aged 29 in 1901, born Leeds (born 1872) Aged 38 in 1911, born Leeds (born 1873) Aged 34 in 1914 when enlisted ("apparent" age) Aged 79 in 1950 when died at Farnworth.
There is no John Charles Mather birth registered at Leeds. Although he was 21 when married, he was only 20 two years later so probably married under age. The closest birth registration match is at Derby:
MATHER, JOHN CHARLES EARP BRIGHT GRO Reference: 1872 D Quarter in DERBY Volume 07B Page 437 This in the son of Joseph Jones Mather who married Elizabeth Bright in Derby, i.e. another. This John Charles E Mather stayed in Derby and married there in 1893.
He died at the age of 78 in March 1950 in Farnworth.2
Death Notes
Possibly died Darlington, 1944, aged 70, but back to Farnworth is more likely:
Deaths Mar 1950 (>99%) Mather John C 79 Farnworth 10c, 234