UNSURE IF THESE ARE NAMES ! #names

Marilyn Weinman
 

In looking over documents and letters from a brother of my Grandfather, I've noticed what i believe are names of children, biut I'm not sure if these are male or female names, or if they're even names at all !! 
The words, that appear to be names are Leiser,Cerne,and Breine
Can someone please help me with this, and also if they are names, are there English, or American equivalents.
Thanks so much, and Be well everyone !
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Marilyn Weinman

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