Richard Sykes1 
Builder of Sledmere.1 He gained the rank of Captain in the Hull Volunteers.1 He held the office of High Sheriff of Yorkshire in 1752.1
Jane Hobman1
Her married name became Sykes.
- [S37] BP2003 volume 3, page 3847. See link for full details for this source. Hereinafter cited as. [S37]
Reverend Sir Mark Sykes, 1st Bt.1 
He graduated from Cambridge University, Cambridge, Cambridgeshire, England, with a Doctor of Divinity (D.D.)1 He was Rector at Roos, Yorkshire, England.1 He was Rector at Roos, Yorkshire, England.1 He was created 1st Baronet Sykes, of Sledmere, co. Yorks [Great Britain] on 28 March 1783.1
Children of Reverend Sir Mark Sykes, 1st Bt. and Decima Woodham
- Mary Sykes1
- Sir Christopher Sykes, 2nd Bt.+2 b. 23 May 1749, d. 17 Sep 1801
Juliet Swift1
- [S320] Notices, The Irish Times, Dublin, Ireland, 10 November 2012. Hereinafter cited as The Irish Times.
Martha Donkin1
From 3 August 1721, her married name became Sykes.
Child of Martha Donkin and Richard Sykes
- Joseph Sykes+2 b. 1723, d. 26 Nov 1805
Joseph Sykes1 
He held the office of Mayor of Hull.1 He held the office of Deputy Lieutenant (D.L.) of the East Riding, Yorkshire.1 He lived at West Ella, Yorkshire, England.3
Child of Joseph Sykes and Dorothy Twigg
- Marianne Sykes+3 b. 1765, d. 1815
Nicholas Twigg1
Child of Nicholas Twigg
- Dorothy Twigg+2 d. 1796
Dorothy Twigg1 
From June 1754, her married name became Sykes.
Child of Dorothy Twigg and Joseph Sykes
- Marianne Sykes+ b. 1765, d. 1815
Joseph Sykes1 
He lived at Leeds, Yorkshire, England.1
