Wow. I looked at that article and found masses of unreferenced allegations about people, although it appears all are dead, so BLP violations can't be claimed. Frankly, I don't think a person's sexuality should be mentioned in an article about sexuality if it isn't mentioned in the persons biographical article. One often looks at articles like these and comes to the conclusion that it's at least partly based on unsourced allegations, rumours, and urban legends. I do note that the women's sexuality is discussed in about half the articles, so that is somewhat reassuring.
On the other hand, I'm not certain that the usage of the term "sewing circles" in reference to lesbianism was common, and it's not around in a lot of references. It absolutely is not more common than the use of the term to refer to groups of women who actually sew - like that marginalized group of Amish and Mennonites who continue to have regular sewing circles even today. Of course, they don't read online encyclopedias so they don't know that our project is suggesting their activity is a fun-filled afternoon of sexual frolicking. My feeling is that the article titled "sewing circle" should refer to needlework and this article renamed to "sewing circles (lesbian groups)" or something like that.