Hi Sew Retro!  My mom and I bought these 2 vintage sewing machines months ago and know nothing about them.  I was hoping someone could help me identify them or point me toward some resources that might be helpful.

Here they are:

1)  Model DST Deluxe Streamliner straight-stitch machine

2)  The second is a Queen (?) zig-zag machine:

More details on my blog!

Any help will be greatly appreciated! Thank you, thank you, thank you in advance!