Harry William Pimm was born 1899 in Kingston upon Thames, Surrey, England, United Kingdom to George Edward Pimm (1872-1954) and Ellen Elizabeth Daburn (1866-1950) and died 1961 Surrey, England, United Kingdom of unspecified causes. He married Violet H Bartlett 1926 in Kingston upon Thames, Surrey, England.
Children
| Name | Birth | Death | Joined with |
| Arthur George Pimm (1927-2003) | 1927 Kingston upon Thames, Surrey, England, United Kingdom | 2003 Surrey, England, United Kingdom | Mildred A Tolfree (1930) |