Right you had a question. The short answers to your questions are: (1) copyright law protects the portions of your patterns that are original to you (though pattern protection can be iffy); (2) you may not have much claim to copyright if your designs are derived from the patterns published in 1962; (3) the author of the 1962 patterns could claim rights to your derivative patterns but only if those 1962 patterns were registered and renewed (unlikely); (4) you own the copyright in photos you take so you can chase people who copy without your permission (although you'll need to register with the Copyright Office if you file a lawsuit); (5) the parents of the kids you gifted can come after you if you use the photos to sell the patterns (under a theory known as "right of publicity") unless you got authorization from them.
A little confused dept. We're not exactly sure what happened between you and the people you "gifted" but it sounds like everybody involved in the gift giving process now regrets it. That's so sad. We believe, like this writer, that gift-giving is actually a form of "taking" but in your case, we feel like there is a little bit of overtaking. Maybe one reason our crafts book doesn't sell so well is that many crafts people recognize that what matters for commercial success is not a proprietary attitude but quality and craftsmanship; these skills will always transcend the underlying patterns.