Hello Feigie:

The Family History Library is located all over the country. It is part of the Mormon Church and familysearch.org.
Here is the contact information

https://www.familysearch.org/en/family-history-library/family-history-library-location

I was able to order the microfilm that contained my wife's family births and marriage information. Once the microfilm is received by your local library they will contact you.
The library has microfilm reader machines to review the pages.

Good luck in your search.

Regards,

Allan Bass