To answer the queries posed in your various replies:
No, I don't think that the "Art Union' voyage is my Catherine. The later one with sister Elizabeth seems to fit better. No I don't have Margaret's marriage cert. but will get it.
I did wonder if MARGARET W. (from Talywain, Trevethin) actually knew Francis Richard PITCHFORD (of Kingsland, Herefordshire) before she came out - but if so why didn't they marry before sailing, and come as a couple; or why didn't they travel on same boat? Quite a few twigs of the Pitchford family line are living in Trevethin, Abersychan, Bedstone, Bucknell, Clun, Abertillery, etc. so perhaps they were known to each other.
Jacobs trips from Mauritius on CJS - both Mrs. Jacobs are too young, at 33 (1898) and 43 (1902), as my Catherine was born in 1843. The two entries for Mr. N. could be Nathaniel, first born son of Charles/Betsy Jacobs - although he wasn't listed as partner, he still could have been working for the firm. No-one has been able to give me any information about him, apart from his marriage and child, but he is definitely not My Mr. N.
Charles Jacobs commenced business in 1856 in Gawler-town, Adelaide, and later one son Samuel Joshua (who was a solicitor) remained in Adelaide to head the S.A. branch; other four sons came to Melbourne and set up at 9 Queen St. to run the business from there. The firm were importers, and at one stage were said to be the biggest sugar importers in Australia at that time. Charles/Betsy (nee Joshua) had eleven children.
N. & Catherine Jacobs went to Curepipe, Mauritius and managed the firm's tea and sugar plantations, and also 'The Family Hotel'. They exported to Australia, Sth.Africa, China and Britain, and had agencies in various countries. I have info. from an old out-of-print book "Mauritius Illustrated" which has a paragraph abt. the firm and photos. of their sugar warehouses on the docks at Pt. Louis.
XX I have found a Catherine Jacobs on a Census in England - in 1881
at Lower Grangetown, Cardiff, district of Cantor -
at No.73 ...? William Morris, head, Amelia wife, David Jones unm. 32, Coal-trimmer and foreman; Catherine Jacobs, Aged 32, Marr., Lodger, born Newport, M/mthshire (no trade or job listed) - could be her, as one of her brothers John Wilkinson ended up living in Cardiff, and died there in 1904, buried Roath Cem., Cardiff. Also the David Jones could be a cousin (through C.'s mother).
I did find a marriage on Free BMD of a Cath. Wilkinson, District Newport Pagnall, Vol. 3a, Page 613 Sept., 1861. (only 18 yrs.
too young to be Catherine?).
Thanks Krisesjoing for all your research - I should have mentioned that the family is listed as Wilkins in earlier Censuses. I think the 1841 Census that Catherine Cooper is not connected. If you look at the actual form, there are a lot of names of course, and nothing to suggest that Catherine Cooper is living at same premises as the Wilkins. She is 'Indep." and in amongst other names not connected. Everyone on Census lives at Talywain, which is where the Commercial Inn and the Wilkins(ons) were situated.
MARGARET W.'s date of birth is 6 June, 1847, Francis Richard P. 28 Oct. 1839.