I believe these are duplicates for this person
I've seen her listed as married to Benjamin Allison and also to Thomas Allison. One of the llnks above merged the two men into Benjmain Thomas Allison.
Her Find-a-Grave shows her husband as Benjamin:
https://www.findagrave.com/memorial/22398466/cassandra-allison
Her Wiki shows the husband as Thomas:
https://www.wikitree.com/wiki/Bird-3519
I'm helping a friend from these lines build her tree. Neither of us knows the lines. Any assistance sorting these folks out would be appreciated. Thanks.