Harley Dalrymple-Hay British civil engineer (1861–1940) (1861–1940) Parents George James Dalrymple-Hay Amelia Emily Maitland Children Alison Hathorn Dalrymple-Hay Siblings George Houston Dalrymple-Hay John Barstow Mackenzie Dalrymple-Hay Mary Emily Dalrymple-Hay Stair Francis Barton Dalrymple-Hay James Reginald Maitland Dalrymple-Hay Anne Susan Dalrymple-Hay Charles Vernon Dalrymple-Hay Partners Agnes Yelland Waters