Rainham Builders
Family: William Riggs / S.L.F. Gamm (F178974)
Harold John Louis Gamm (1904-1994) 
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Margaret Gertrude (Maggie) Sherk (1906-1994)
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Jean Marie Elizabeth Gamm (1927-2006)  |
| Harold Edwin Vernon Gamm (1929-1977) |
| Kenneth Harvey (Satch) Gamm (1933-2003) |