This may be his birth registration: James John Frewer, birth reg 1844, Oct-Nov-Dec qtr, in St Giles, London, Middlesex, Volume: 1, Page: 71

In 1891 census at 7 Romney Street, in St George Hanover Square subdistrict of St John, Westminster, London (in St John the Evangalist civil parish )
James Frewer 46, head, b ca 1845 in Bloomsbury, London, wheelwrights smith
Mary Frewer 45, wife, b ca 1846 in Marylebone, London, office cleaner char
Alice Frewer 10, daughter b ca 1881 in Chelsea, London, scholar
Ellen Frewer 7, daughter, b ca 1884 in Bow, London, scholar
Thomas Frewer 4, son, b ca 1887 in Westminster, London , scholar
Louisa Frewer 1, daughter, b ca 1890 in Westminster, London 25

In the 1901 census at 4 York Buildings, Grubb St, in the Civil Parish of St John and St Margaret, Westminster, London. 2 rooms occupied
James Frewer 57, head, b ca 1844 in Bloomsbury, London, wheelwrights smith
Mary Frewer 56, wife, b ca 1845 in Chelsea, London, office cleaner char
Alice Frewer 20, daughter, b ca 1881 in Chelsea, London, general domestic servant
Ellen Frewer 19, daughter, b ca 1882 in Bow, London, bottle labeller
Thomas Frewer 14, , son, b ca 1887 in Westminster, London , canvas stretcher
Louisa Frewer 12, daughter, b ca 1889 in Westminster, London 28

This could be his death registration: James Frewer died aged 60, death reg in Lambeth district of Greater London in Oct-Nov-Dec qtr of 1905, so b ca 1845, Volume: 1d Page: 1 39