Good morning M, Inheriting OPS can be both a sentimental and problematic thing to deal with. My mom was a craft hoarder, mostly cross stitching and I literally inherited a room full of her unfinished projects. It took me a few years to deal with it all, a little at a time.
If the bobbin thread is good you can rewind it onto bobbins that fit your machine.
I don't know what the coral colored thread is, looks like pearl cotton, but I can see a funky quilt with this used as a fun folk art hand quilting thread in a large scale style.
I have used very old transfer patterns and they still worked. Get creative with these. They don't need to be used just for embroidery work. Transfer and use a crayon process to color on fabric and quilt it. Enlarge the designs to use as quilt motifs. These little packages are like getting free clip art. They would make great mini quilts. Enjoy them, or pass them along. They don't have much value except to anyone who wants to get creative with them.
As you can see, your simple 'tools' have my creative side going into overdrive.
peace