Thank you all for your replies. I found my ancester Ann Addis.on line(freereg), with only the mother, Elizabeth) named. I wanted to find more of the family, so went to view the microfiche at Nottingham. I found the 3 children mentioned with the word illegitimate written in the book. The mother has the same name as a mother with 3 legitimate earlier children and a father named as William. The other 3 were born in 1778, 1800 and 1802. As the father seemed to be absent after the 1802 baptism, I guessed that maybe he was called to the militia to defend the country. Information is sketchy. Apparently it was thought that england may be invaded, so I surmised that he may be based in the UK rather than abroad, hence potentially home leave. I have read that an allowance was paid to wives. However, I guess that if she had little or no income, maybe she opted to live with another man. I looked in many registers, but the word illegitimate occured very frequently in this parish at this time. There were records available of cases of fathers being persued for payment within the record office, but I did not have time to search them. Perhaps that should be my next course of action, when I am able to get there again. At the moment, I am just guessing at scenarios. If anyone has any better ideas, please let me know.