Background
Born in Edinburgh, he was the eldest son of Sir William Baillie, 1st Baronet and his wife Mary Lyon Dennistoun, the youngest daughter of James Dennistoun.
Born in Edinburgh, he was the eldest son of Sir William Baillie, 1st Baronet and his wife Mary Lyon Dennistoun, the youngest daughter of James Dennistoun.
Baillie was educated at Eton College and then at Christ Church, Oxford, where he graduated with a Bachelor of Arts degree in 1836.
He was also a part of the Head of the River crew at Oxford with his college boat, Christ Church. Baillie served as captain in the Midlothian Yeomanry Cavalry. Baillie was a Deputy Lieutenant of Linlithgowshire from 1850 and was a Justice of the Peace.
On 14 April 1846, Baillie married Mary Stewart, the eldest daughter of Stair Hathorn Stewart.
14th United Kingdom Parliament]
In 1845 he was elected Member of Parliament for Linlithgowshire, sitting for the next two years.