According to several trees here at Ancestry.com, a Rose/Rozalia Toczko married a Jan Grycel. Have you seen those? It could be your Rozalia and for some reason she used her maiden name.
Also, I checked the 1958 Hartford city directory here at Ancestry.com for John Toczko and found: (note: rem = removed, i.e., moved)
Toszko John D (Helen A) rem to New Britain
It's possible that this was the man who was found frozen in Hartford, because these directories were usually compiled the year before, i.e., 1957 in this case.