David, Welcome to the gen. research. Just quickly, I suggest that you ask on this list for a lookup on the Griffiths Valuation CD, for the name Chapman in Co. Longford. There may not have been more than a handful, if that, of such households in the late 1850s, which was the approx. time frame for that valuation (tax) list for a county that far north. It will provide the head of household and his location, which I think will be the civil parish. Then you consult Brian Mitchell's book (he has several and all are very handy) which is an atlas, to obtain the church parish name matching the civil parish name (if the family was Catholic). If the family was Protestant, then you can proceed directly to the LDS film for births for 1847 (also 1846 and 1848), to find the civil birth registration, which was required of Protestants as of 1845. That will provide the parents' names and registra- tion district, the name of which is usually a large urban center near the family's townland or village. Good luck. You may obtain results fairly fast on this part of the research, It's getting back beyond 1845 that is often the struggle. Sharon Carberry Connecticut