Hornby's sister Charlotte Margaret later married her cousin Edward Smith-Stanley, 13th Earl of Derby, and the close association between the Earls of Derby and the Hornby family would play a significant role in Phipps Hornby's career and politics.
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The eldest son, John, died in service with the Royal Engineers in 1848 aged 27, while his younger sons Geoffrey Hornby and James John Hornby had lengthy and successful careers in the Royal Navy and education respectively.
Hornby | Nick Hornby | Hornby Railways | A. N. Hornby | George Phipps, 2nd Marquess of Normanby | Ogden Phipps | John Hornby | James John Hornby | Geoffrey Hornby | Constantine Phipps, 2nd Baron Mulgrave | Pickering Phipps | Phipps Hornby (cricketer) | John H. H. Phipps | Hornby Castle, Yorkshire | Henry Phipps, Jr. | Eric Phipps | Constantine Phipps, 1st Marquess of Normanby | Bill Phipps | Andy Hornby | Wintley Phipps | William Hornby (governor) | William Hornby | Sir William Hornby, 1st Baronet | Phipps Hornby | Phipps family | Phipps Conservatory and Botanical Gardens | Ogden Mills Phipps | 'Monkey' Hornby | Michael Grace Phipps | Max Phipps |
Hornby was born at Winwick, the third son of Admiral Sir Phipps Hornby and his wife Sophia Maria Burgoyne, eldest daughter of Sir John Burgoyne.