I'm not familiar with this writer. I'm not surprised- I know many hundreds of fairly good writers who live and die, many without recording much of their work. It's not at all uncommon in this world.
What is rare is that there is a good enough story to some company think re-releasing a record might get some interest.
For about 15 years, I stage managed the New Folk competition at the Kerrville folk festival. It was pretty impressive to see 24 singer songwriters (selected from a poool of 600-1000 or so) all play over the course of 2 concerts, bringing whatever they thought was their best material.
Even weirder was going to Folk Alliance this year and running into all these folks who are slightly familiar... "oh, yeah, I remember you- I put a mic in from of you for 3 songs, 8 years ago".
Of the 800 or so songs I have heard there over the years most were as good as anything I hear outside these little folk music spots.
I know a solid 100 or so folks who put out an album of good work and then went on to live their lives. It's such a hard thing to make money off it that our time gets spent up doing all of the many, many other things in life that are compelling but pay better.
Still, if you look, you'll find folks who are out there writing songs to play. Even better, they are still alive and get really happy when you give them some cash for a tip.
I'm really surprised that you're that deep into folk and have never heard of Connie Converse. She's turned up on my radar multiple times over the past couple of decades, and I don't go looking for her, or much folk content.
I guess it underlines that we all live in filter bubbles - I had assumed she was more well-known than she really is based on news stories like this. Every other artist mentioned on this page? I've never heard of them. Off to youtube...
In my teens I was really into '60s and '70s counterculture and spent most of my nights looking up music from that era. Among all the lesser-known gems with surprising longevity (e.g. Tractor), there were hundreds - if not thousands - of bands with only one or two albums. A few times I was so fascinated by these short-lived bands that I looked up the musicians and reached out to them on Facebook (in its early days). All of them responded and were surprised and happy to chat about their band. And yeah... they just live "normal" non-musician lives now.