If you are looking for information on Eldredge or Kruse & Murphy brands of chain stitch sewing machines I have some of my resources on webshots.
If you are interested in viewing photos of my own sewing machine collection, many of my machines are also on webshots: http://community.webshots.com/user/nycfms . Warning! Webshots has commercials. Turn the volume on your computer speakers down or off before visiting that site. :o(