Hi, maybe the images I found are a bit clearer so am adding my findings to what Liz found earlier
1891 census, Ann's birthplace is Seaham Harbour, address is 30 High Row, Roddymoor, Crook
1901 census, Thomas' birthplace is Bedburn, (abt 5 miles from Crook) and Ann's is Murton Coll (Murton Colliery), children's 2nd names are abbreviated so hard to make out but have checked them against birth registrations on freebmd:
William Ernest and Mark Anthony, both born Sunniside Crook, Jane Ellen b. Howden le Wear, Thomas George b. Roddymoor Crook, Esther Isabella b. Witton le Wear, Alfred Ralph & John Robert Watson, and Hugh Greenwell, all 3 born Crook
I think the name Mark must be a mistake on the 1901, the 1911 index shows Matthew A. as in 1891, and if you check freebmd for the births there doesn't seem to be one for a Mark
It might be worth looking at the full 1911 image to see what birthplace is given for Thomas. In the index the children's names are as above. There is also a Richard Hunter Simpson. You need to buy credits to see the household list or the full image.
Because of Richard's middle name, there's a possibility that Thomas Simpson married Ann Hunter Sep 1884 Auckland 10a 263 - but as Liz says, you may need to get Hugh's birth cert to be sure, as there are a few Thomas Simpson/Ann marriages around that time and area
Kind regards
Barbara