| Birth | 30 Mar 1888 | Tranmere, Birkenhead, Cheshire | | | |
| Baptism | 20 May 1888 | St Paul's Parish Church, Tranmere, Birkenhead, Cheshire | | | |
| Residence | 1891 | with her parents - 6, Stanley Street, Tranmere, Birkenhead, Cheshire | | | |
| Residence | 1901 | with her parents - 147, Bravington Road, Paddington, London | | | |
| Residence | 1911 | as a boarder - 38, Burghley Road, St Pancras, London | | | |
| Occupation | 1911 | shop assistant (Lipton's) - London | | | |
| Marriage | 1915 | Kensington Registration District, Middlesex - Percy Edward UNDERWOOD | | | |
| Residence (family) | From 1933 to 1938 | 7, Cross Deep Cottages, Twickenham, Middlesex - Percy Edward UNDERWOOD | | | |
| Residence (family) | Abt 12 Sep 1935 | The Limes, Gilstone Road, South Kensington, London - Percy Edward UNDERWOOD | | | |
| Miscellaneous | 14 Sep 1935 | departed aboard the SS Westernland bound for New York - the Port of Southampton | | | |
| Miscellaneous | 23 Sep 1935 | arrived aboard the SS Westernland from Southampton - the Port of New York | | | |
| Residence (family) | Abt 25 Sep 1935 | with Harriet's brother Jack Curran - 47th Street, Long Island City, Queens, New York - Percy Edward UNDERWOOD | | | |
| Residence (family) | 29 Sep 1939 | 7, Cross Deep Cottages, Twickenham, Middlesex - Percy Edward UNDERWOOD | | | |
| Death | 14 Jun 1973 | 3, Normandy Court, West Parade, Bexhill-on-Sea, Sussex | | | |
| Probate | 9 Jul 1973 | London |  | | |