Re: recovering expired membership applications?

I am a group moderator. I returned from 10 days vacation to find that two people of possibly 20 I have solicited to join a Yahoo Group applied while I was gone and the Yahoo expiration period came and went (it's too short). People are leery of joining I have found, but I would like them to join this group, have advocated it. Now I suspect two tried and were rebuffed by the Yahoo time period. Can I recover their applications?