The ones that I know of were an Eleanor that died young (b.1682 d. 1683), another Elaenor - the one mentioned on here (b.1689) and a Frances (b.1680) who married Josiah Dineley.
If you look at the tree that I can see on Geni.com you will see that the dates given are very loose and there are only 3 generations from Elizabeth Goodere (who would have to have been born between 1690 and 1713 when her supposed mother died aged 50) and her grandson William SPENCER b.1792. I suspect this is a case of wishing it to be correct, rather than any evidence that it is.
If you want to send me some details of as far back as you can go with your Spencer’s I am happy to have a look to see if I can find a link backwards from there, but I suspect that there are at least generations missing and probably missattributation too.
Neil