Sir Alexander was born in County Down on 28 July 1882, the son of Ada Austen Eyre and Alexander Hamilton Miller Haven Gordon, DL of Florida Manor,
Killinchy and Delamont,
Killyleagh. Florida Manor, a late 17th-century estate, described by Sir
Charles Brett as a "rather mysterious house", came to the Gordons by the marriage, in 1755, of Robert Gordon to Alice Arbuckle, heiress to the Crawfords of
Crawfordsburn. The Gordons were hitherto wine and spirit merchants but the progeny of this marriage, David, established Gordon and Company bankers, later to become
Belfast Banking Company. David Gordon went on to marry a cousin of his mother's – Mary Crawford, of Crawfordsburn – in 1789. Florida Manor was sold in 1910. Sir Alexander inherited Delamont from his father. During his residence there his main legacy to the house was to demolish the redundant servants' wing. ==Career==