Hamar Bass was the second son of Michael Thomas Bass and his wife Eliza Jane Arden. He was brother of Lord Burton and also a Director of the family firm of Bass, Ratcliff, Gretton and Co. One sister Emily married Sir William Plowden, MP for Wolverhampton West, and the other married Sir George Chetwode being the mother of Field Marshall Philip Chetwode.
Hamar Bass was MP for Tamworth from 1878 to 1885. He was then MP for West Staffordshire from 1885 until his death aged 56 in 1898 from a complex form of rheumatism.
Hamar Bass married Louisa Bagot (1853-1942), daughter of William Bagot, 3rd Baron Bagot, in 1879. They lived at Byrkley Lodge and Needwood House, Burton, and also at 145 Piccadilly, London. Louisa subsequently married Rev Bernard Shaw. He was a breeder at the Byrkley Stud and his horse “Love Wisely” won the Ascot Gold Cup in 1896. He was also for 12 years master of the Meynell Hunt.
His son William succeeded in his uncle’s baronetcy of Stafford according to special remainder. Hamar Bass’s daughter Sibell Lucia married Major Berkeley John Talbot Levett, Scots Guard, son of Theophilus Levett of Wychnor Park, Staffordshire. Berkeley Levett served as one of the Gentlemen Ushers to the Royal Family from 1919 to 1937.