St Mary's Road Plaistow is very close to West Ham - not far away from West Ham park.
West Ham Hospital may now be the Newham Hospital, and that's just over a mile away.
Edited: no, Newham Hospital was opened in 1963, so not that one. What about St Mary's Hospital Plaistow,
"This hospital was founded in 1888 as a Day Nursery by Rev. T. Given-Wilson, (d. 1916), Vicar of Plaistow, who presented a site in 1892. A Day Nursery, with ward for child in-patients was erected at the expense of Rev. Henry Blisset and opened in 1893 . In 1895 the name was changed to St. Mary's Day Nursery and Hospital for Sick Children. This changed again in 1905 when the day nursery was discontinued and it became known as St. Mary's Hospital for Women and Children, Plaistow. Joseph, Lord Lister, served as president of the Charity from 1899 to his death in 1912. A new Hospital intended to provide 66 beds was begun in 1909 and completed in 1911, although only 38 beds were provided. A nurses' home was begun in 1922, by which time 58 in patient beds were provided, whilst the first section of the Out-Patients department was opened in 1928. The hospital was incorporated into the National Health Service in 1948 transferring to the control of the Regional Hospitals Board. In 1974 the Hospital, which had by now had 100 beds, became part of Newham Health District under the City and East London Area Health Authority (Teaching). The hospital closed in 1983 under the then management of Newham Health Authority and services transferred to the newly opened Newham General Hospital"