Hello Mary, have you checked out this family - This George Richard Kirby could be too old - but he may have had a Son with the initials G. R. - I guess anything is worth a try ?

JOHN KIRBY and ELIZTH. COLQUHOUN Marriage: 19 MAR 1846 Braddan

Children,
EMMA KIRBY01 AUG 1847 Saint Mathews, Douglas
REBBECCA JANE KIRBY01 APR 1849 Saint Mathews, Douglas
EDWD WM KIRBY06 OCT 1850 Saint Mathews, Douglas

GEORGE RICHARD KIRBEY14 SEP 1852 Saint Mathews, Douglas

JESSE ELLEN KIRBY07 JAN 1855 Saint Barnabas, Douglas
JOHN WILKINSON KIRBY04 AUG 1861 Saint Mathews, Douglas

hope this helps,
Averil