contact church martindale, columbia county, for her marriage license application as her obit says that is where she wed, and have them check the alternate spelling of finger -someone may not have read it correctly when they filed it -good luck
also
Claverack Town Clerk
91 Church St
Mellenville, NY
(518) 672-7911

http://www.philmont.org/churches.html inclds Reformed Dutch Church of Claverack 88 Route 9H, Claverack NY
PHONE: (518) 851-3811
Services and Sunday School -- 9:30AM
http://www.rootsweb.ancestry.com/~nycolumb/reformed%20church...
but she may have gone to a different church then