@JanMurphy Good idea. I'll try to remember to sign up for the newsletter. There is just so much to read nowadays. My inbox if full of interesting stuff that never sees the light of day.
My house is also full of magazines that have never been opened :/
When I try to let the subscriptions expire, they send me ridiculous renewal offers like $10 for the year. Who can pass that up? So they start coming again and sit in a nice glossy, colourful pile, waiting for the day I can again enjoy a cup of tea without kids around ;)
@CanadianGirlScout I tried switching a couple of magazine subs to digital. Guess what? The digital issues pile up on my hard drive unread, unless I read them in bed on my smartphone (awkward).
I don't have a tablet or eReader, and when I'm at my computer, I'm usually doing something else. Even so, I wish I had the money and space for a 'portrait' computer monitor or a tablet that would show an entire 8 x 11 pdf page at full-size.
This answer includes some material which was originally left in comments and is incomplete.
The question involves two different intertwined questions -- discovering what church the Sellars family might have attended, and discovering what records produced by those churches might have survived.
A...
@PolyGeo You're very welcome. I was aware of those town resources before, but I had forgotten they were there. The town I was looking for has no resources listed.
I was reminded of it this morning, when the New York resource guide was listed as a feature in the site's email newsletter.
@PolyGeo NEHGS is holding a webinar on their New York resources tomorrow -- if the time slot is not convenient for you, they say a recording will be available afterwards. http://www.americanancestors.org/education/online-classes/
This is one of the free webinars which is open to the public. You do not need to be a member of NEHGS.
This is the page where the archived recordings can be found:
@PolyGeo I hope it will be of use. At the moment, I am registered for the website to use the free resources -- I do not have a membership. Even if I can't use a particular archive or library, from watching presentations like this, I get ideas of record types I can look for closer to home.