Hi Derek,
Is 1776 a typo?
GENUKI Middleton - in -Teesdale pages has these children
Rawbottom, Nelly, bapt 26 Apr 1766, child of James and Nanny of Langdon
burial Rawbottom, Nelly of Longdon, Forrest, d of James - 26 Jun 1766
Rawbotham, William, bapt 3 Nov 1770, child of James and Nanny of Langdon
Rawbottom, John, bapt 28 May 1773, child of John and Ann of Langdon Mines
Rawbottom, Mary, bapt 17 Feb 1776, child of James and Anne of Longdon
Rawbottom, Isaac, bapt 9 Jul 1780, child of James and Ann of Field Head
Durham record office has these references
Ref: D/St/D3/4/106
2 November 1784
(1) Robert Allinson of Low Wemmergill in Lunedale, Yorkshire, yeoman
(2) James Rowbotham of Fieldhead, parish of Middleton, miner
Assignment of lease for residue of 1000 years of West Close and a rigg of land adjoining in south Spotty Land in Holwick
Consideration: £195
Rent: 4s.6d. p.a. to Lord of Manor of Mickleton, and 7d. p.a. to Rector of Romaldkirk
(1 paper)
Did James return from Derbyshire or is this a different person
Ref: D/St/D3/4/108
25 August 1802
(1) James Rowbotham of West Close, Holwick, Yorkshire, miner
(2) James Hogg of Romaldkirk, Yorkshire, merchant
Mortgage in £200 of West Close and 1/2r. adjoining on south of Spotty land in Holwick
(Parchment, 1 membrane)
Ref: D/St/D3/4/111
13 May 1805
(1) James Rowbotham heretofore of Holwick, Yorkshire, now of Arkengarthdale, Yorkshire, miner and innkeeper
(2) James Hogg of Romaldkirk, Yorkshire, merchant
(3) John Watson of Holwick, Yorkshire, yeoman
Assignment to (3) of property as in D/St/D3/4/108
Consideration: £190 to (1) and £200 to (2)
(Parchment, 2 membranes)
There does not seem to have been a marriage in Middleton. I also checked Romaldkirk across the border in Yorkshire as it was also a lead mining area. There were earlier Robothams/Rawbottoms at Staindrop but no James as far as I can see. Also nothing on the Joiner Index of marriages.