John Crawford

http://lordbelmontinnorthernireland.blogspot.com/2014/03/crawfordsb...

John Crawford JP (1745-1827), of Crawfordsburn, eldest son of James Crawford and Mabel, nee Johnston, married in 1774, Mary, daughter of John Kennedy, of Cultra, County Down, and had issue:
Arthur Johnston, MP, of Rademon, dvp unmarried;
Mabel Fridiswide, the only daughter, heiress, married to William Sharman who added the name of Crawford to his own.

https://www.bloomfieldbelfast.co.uk/crawford-family-1798-1831.php - 'The Crawford Family':

John Crawford (c.1744-1827), inherited Crawfordsburn and Rademon House. He was a supporter of the United Irishmen. In 1784, John married Maria Kennedy (c.1748-1829), daughter of Hugh Kennedy of Cultra, Co. Down - a neighbour from just further along the North Down coastline. John and Maria had two children. Their only son was Arthur Johnston Crawford who died unmarried in 1826, aged 40. The Crawfordsburn estate was inherited by the husband of John and Maria's only other child, their daughter Mabel Fridiswid Crawford -- on condition he would assume the Crawford name.