I believe the Don & Judy Characters came out with Poser 5 which was about 2003. For their time they were very well done. But I think they were before Lipsynch was built in to characters. Software for lipsycnch began about that time but was separate until it was built in to Poser 7, which was formally released around December of 2006.

Don and Judy, I believe were designed to share some texture maps with Daz's Vicky 1 and Michael 1 which may be of some help if you can find a software for them. It implies some similarity of figure construction.

Here is a brief history of Poser/Daz Lipsynch: https://www.youtube.com/watch?v=6lUR3ckegBI

I also found this, below, which is not too helpful except that it seems to show that lipsynch for the early characters may be possible: https://www.youtube.com/watch?v=J1kgU430NQE