Yes, you are correct. I have an ancestor named Harriet Newell Austin, and in researching her I found 5 others of the exact same name, plus about a dozen others named Harriet Newell Whatever. I did more research and found that they were all named after the young missionary who died. There's a lot online about her -- at Wikipedia, for instance. Probably hundreds, maybe thousands, of girls were named after her over the course of several decades.