Hi Nicole! I work with Dixons a lot, trying to find the father of my 3x gr-grandfather Zachariah (Dixon-1237). I haven't noticed any Mabels, but it's not a name repeated in my family tree, so I wouldn't have.
I did a search in WikiTree to see if you had asked this question on a particular profile (came up with two Mabel Dixons - Dixon-279 and Dixon-752, your question wasn't on either one). If you *did* ask on a particular profile, could you add which one it was (in addition to adding timeframes/locations for Clarence and Mabel)?