Yes, people like myself can get hours of innocent fun and amusement tangling ourselves up in questions like these... Won't get any work done but...
I'll try to give you a couple of principles:
- If you have two or more copies of the same source, you only need record one;
- To decide which one, use the one that is closest to the original;
- Beware there are all sorts of ways of making "copies". Digital images and transcriptions have different value to the family historian since a digital image is normally "exact" while a transcript might contain errors;
The Americans use the term "derivative" rather than "copy", perhaps because "derivative" includes transcripts, abstracts, summaries, etc., whereas "copy"
can be taken to imply "exact copy".
So taking the LancsOPC version and the image on Ancestry.... Both are derivatives of the original, which is the parish register. Ancestry's derivative is a
digital image of a
microfilm of the PR. LancsOPC is a
transcript of a
microfilm of the PR (that's why it says "Source: LDS Film ...") Which is the closest to the original? Because a transcript
can contain errors, while microfilming and digitisation shouldn't, then I would say, use the Ancestry version.
If you've already entered the LancsOPC version then you can either alter it so it's referring to the Ancestry version instead or just put a note in the source-record saying that you've checked it and the transcript is OK. Either way, you only need one.
If you made your own transcript from a microfilm ages ago, then
your source was the microfilm, and it's as good as the original PR, so there's no point in altering that or adding a new source-record.
As for Repositories.... Well, this can get a bit weird. I started out getting copies of BMD certificates and recording the Repository as "Me" because that's where the certificates are. But that's a bit of a nonsense. The Repository is best used to tell other people where to get a copy of the source or where to see the source. So "Me" isn't very helpful. One good tip is - don't duplicate data in your source record. I tend to say that digital images have a publisher of Ancestry / FMP / FamilySearch / etc. - in that case there is no need to repeat myself and say that the repository is the same. I could just leave it blank and frequently do if I've already said all I need to say in the publication details.
So, I'd probably leave the Repository blank for all three of those on the basis that:
- Any LancsOPC source-record would say "Published on LancsOPS web-site, accessed dd/mm/yy citing LDS Film 12345 of original parish register";
- An Ancestry source-record would say "Published in 'xxxxx Collection' on LancsOPS web-site, accessed dd/mm/yy, citing original PRs from Lancashire RO";
- Any microfilm source-record would say "Published on microfilm by FamilySearch, citing original PR reference ....."
Something like that....