From Shetland History Online
Balfour Spence (b. 17 March 1777, Unst, d. 1 October 1843, Lerwick) was a Shipping Agent, Merchant and Lerwick Town Councillor.
Bayanne genealogy page notes that Spence was involved in the trading of illegal goods on top of his legal activities and indicates that he was a 4th Great-Grandfather of Shetland Archivist, Brian Smith.
His political career spanned from 1820 to 1826.
He was married to Charlotte Ogilvy, daughter of Charles and brother of Charles, both councillors. His great-great grandson Charles Spence was a Zetland County Councillor and his third cousin once-removed William Spence was also a councillor.