Coincidentally, I just found this podcast in which Joanna is interviewed. She talks a bit about her childhood, growing up first in Middletown, RI and moving to Newport when she was 8. She also discusses Seaview and running home from school to watch DS.
The Cowsills were also reputedly from Newport before they were famous, but to be technical, according to Susan they were originally from Middletown. But according to Susan she could and often did walk to Newport from her house. I spoke to her when she did a free concert at Kings Park in Newport a few years ago. I never knew they were actually not technically from Newport.
Here's a link to the interview with Joanna.
https://podknife.com/podcasts/tv-guidance-counselor-podcast