No, that's quite true - I can see her chairing any number of committees. I think I meant 'if I was certain it wasn't mentioned anywhere in canon and I was writing Mrs Merrick I would probably give her a job, but as it is I strongly suspect it's mentioned somewhere in canon that she doesn't have a paid job'.

As far as the only-one-child thing goes, I think I assumed fertility problems which neither of the Merricks actually found that distressing. Though whilst I suspect Mr Merrick actually does follow the Church's teachings on contraception, I wouldn't be in any way surprised if Mrs Merrick had quietly taken steps to make sure there weren't any more, thank you.