This is NOT the salute those kids were doing, in fact, thaks to your post, I did some searching myself, and BEllamy's original recommendations were:
After leaving the pulpit, Francis Bellamy decided to advance his authoritarian ideas through the public schools. Bellamy wrote the Pledge of Allegiance for Youth's Companion, a popular children's magazine. With the aid of the National Education Association, Bellamy and the editors of Youth's Companion got the Pledge adopted as part of the National Public School Celebration on Columbus Day 1892.
I have to admit I never knew there was a two step salute, but to post the picture of the kids doing a SIEG HIEL salute as the plege is misinformative, it was a two step salute with the arm outstretched after a military salute
Wow, thanks for doing the due diligence and researching that. I didn't know about the two-step salute either, and find it fascinating.
Almost makes me want to sit here and research all the various forms of salute through the ages (I believe the Romans had some good ones). Almost.... dinner is late, and finally beckons. Maybe tomorrow ;-)
Thanks again!