My gut says probably.

• Does she easily fit a phenotype?
  -Yes, rat face.
  
• Does she have a lot of activism type accolades? -Yes.
• Do any of those accolades warrant a Wikipedia page devoted to her? -No, not particularly.
• Am I biased to call someone a jew because they have a Wikipedia page and haven't done really anything that warrants a Wikipedia page? -Absolutely. This bias was formed during Voat when it was getting pointed out that random local newspaper "journalists" had Wikipedia pages...and they all had an Early Life Section.

Linda Moulton Howe's religious background is not publicly known. Information on her family, including her father Chet Moulton, also doesn't indicate a specific religious affiliation. While she has appeared at conferences with individuals of various faiths, including a rabbi, this does not confirm her personal beliefs.

Ultimately, there is no public record of Linda Moulton Howe's religion, so it's not possible to confirm whether she is Jewish or belongs to any other faith.

It's either a hardcoded answer or she made sure to not ever talk about her religion.

Or both.