Mary Buchanan (died 1818) (1731–1818) Parents Martha Murdoch Archibald Buchanan, 1st of Auchentorlie Children Archibald Speirs Peter Spiers, 1st of Culcreuch Siblings George Buchanan Andrew Buchanan, 1st of Ardenconnel Peter Buchanan Partners Alexander Spiers, 1st of Elderslie
