Hello,
Don't know where Jack went too but the following is from the Electoral Rolls for Engleheart Road for various years.....

1912-13 Area No.8 CATFORD WEST
043 MARTIN, William

111 MARTIN, George Douglas

1913-14 District No.8 CATFORD WEST
043 MARTIN, Emily

1915-16 District No.8 CATFORD WEST
043 -------

111 MARTIN, George Douglas

1921 Spring LEWISHAM EAST - Area No. 7 District G CATFORD
043 HAY, Emily
043 HAY, Andrew Cockburn

038 MARTIN, Sarah
038 Living with CLARKES

077 MARTIN, William
077 STEMP, John
077 STEMP, Ada

111 MARTIN, George Douglas

1929-30 LEWISHAM EAST - Area No. 10 District J CATFORD
043 HAY, Emily
043 HAY, James
043 PYNE, Matthew Ernest

111 MARTIN, George Douglas

184 MARTIN, George
184 MARTIN, Dorothy

1925 Spring LEWISHAM EAST - Area No. 7 District G CATFORD
043 HAY, Emily
043 HAY, James
043 MARTIN, William Charles
043 MARTIN, Emily Rose

111 MARTIN, George Douglas

111 MARTIN, Gladys Dorothy
111 MARTIN, Harold Douglas