RootsChat.Com

As I  said, I didn't know you could, and I don't know how. I'll go and check how now. I may be back for an "idiot's guide" to doing it.

That last should have been for Craclyn, sorry.
As to pughcd's suggestion, we are clearly in similar circumstances, but the only known illegitimate ancestor in my tree is on my father's side; these Cunninghams are my mother's DNA matches. No missing fathers anywhere in my mother's tree.
as to your possible problem of  "another (different?) NEP somewhere", the lack of Hepple/ Mitchell and Hurrion/ Stuart matches and the really large number of Cunningham matches has made me wonder whether BOTH Henrietta Hurrion and Robert Mitchell Hepple were Cunningham cuckoos!

pughcd and Craclyn (sorry , not seeing puch's post and RC name.)
thank you both so much for taking the trouble to re-animate this thread. I hope i am picking up on all your advice here and explaining how much I have already done on those lines. When I have posted this, I'll look back to check and also start running with any suggestion you've made which i have not attempted. I can do any paper chase research and construct the bushiest of dozens of trees ..... but I am a historian with absolutely no scientific training whatsoever.
I have made a separate Cunningham tree and have fitted in most of my Cunningham matches - over 30 at this point. I know them well, now! There is no doubt that proximity at the time of the births of my great grandmother Henrietta Hurrion and my 2x great grandfather Robert Mitchell Hepple points up John Cunningham 1802 and his son James Fairweather Cunningham as the possible father cuckoos. I have matches to Cunninghams descended from Jame's siblings and some that look like Hendersons (James's wife Eleanor Henderson)
I have made 2 x trees for my mother with the official Hurrion line removed and the relevant James Fairweather Cunningham with temporary proximity and temporary time slot added as father of my great grandmother Henrietta Hurrion b Strood 1866 instead of William Ashdown Hurrion 1831 Tonbridge, Kent. I have not so far restored the Hurrions and done a different one for Robert Mitchell Hepple, South Shields 1838 who would have been fathered by James's father John on Robert's mother  Mary Ann Turner 1836, Warkworth Nbd.
It would be easy to choose by elimination if I had any Hurrion DNA matches or Hepple/ Mitchell matches, but I have neither.

HELP? WHERE HAS MY LIST GONE?
 I listed parents of James Sweeting (William 1775-1862 silversmith and Mary Riches) addresses for bapts of their children Leonard St, Hosier Lane 1801-1813, then James, son no 2 1803 - 1860 also a silversmith and his 2 women Elizabeth Eldon wife chn born 1823 -1829 (Eliz.th Mary, Amelia, William, James Henry, Martha Lydia) mainly KIng Johns Ct area to 1825, St Lukes 1828, Haggerson 1829 and Mary (Sophia) Orange partner chn born 1832 - 1846. Most known addresses Wellington Row BG but several baptismal addresses New Inn Yard (1832,1844) . Some births known only from burials: twins Charles and Lydia 1832, George 1833-4, George 1834-5, Henry (James) my 2x gt gfather 1836, Charles Ernest 1837, Louis 1838, David 1840, Alfred 1841, Edward Riches 1843, Mary Susan 1844 and Edward 1846 with bapts and Churches and addresses given. I noted addresses from Land Tax and the places of birth given by the surviving children in censuses.
AND IT IS NOT HERE!
Silversmithing was concentrated in Clerkenwell, furniture trades in Shoreditch - note enormous number of timberyards around New Inn Yard.
Joseph Orange was father of Mary Sophia Orange. He was a cabinet maker. He gave Curtain Road, New Inn Yard addresses in 1804, 1807, 1811, Woods Buildings 1821, and York Street BG 1814. He was listed as an elector there in 1838, and died there in 1863.
I still don't get it. I give up!