| Date | Event | Place | Reference |
| 12 Jun 1862 | George Gumbleton matriculated, Christchurch College | Oxford, Oxfordshire | Alumni Oxonienses
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| 2 Apr 1871 | George GUMBLETON living in Paddington in 1871 census. | Paddington | 1871 census
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| 1876 | George Gumbleton landowner 1876 |   | Deed
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| 3 Apr 1881 | George GUMBLETON living in 59 & 60 St James St, St George, London in 1881 census | 59 &R | 1881 census
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| 1889 | Marriage of George Gumbleton | Kensington RD, Middlesex | GRO Marriage indexes
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| 1891 | George Gumbleton living in Brechin Place, Kensington in 1891 census | Kensington, Middlesex | 1891 census
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| 1892 | George Gumbleton in Pump Court London | LNDN | PO Directory
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| 1894 | George GUMBLETON death registered, age 50 | Romney Marsh RD, Kent | GRO death index
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| 29 May 1894 | Death notice of Dr Greorge Gumbleton | - | Birmingham Daily Post
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| 3 Jul 1894 | Will of George Gumbleton proved | - | Principal Probate Registry
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