I made this list and pic (click to enlarge, the next size would reach into the right column) for better identification. It's sorted by rating. Some few boys are missing. Some names yet unknown. More lists to come (girls, songs). All boys wear long bibs, except #9 (orange shortalls).
# Name rating song/DVD remarks
1 Matthew Bartilson, rating 8+, Swingin' (Country Sing-A-Long, also more links/pics), sitting, also riding and dancing, not that handsome but great bibs brand Guess
2 Casey Rion, rating 8-, Locomotion, (also Little Red Caboose) hickory
3 Kyle Stanley rating 8, Locomotion, hickory (also earlier in other songs with different hair incl bowlcut but not in bibs)
4 Landon Prairie? rating 8, Little Red Caboose
5 Michael Minden, rating ~7 (also in Loco-Motion) , Mashed Potato Time
6 Michael Lloyd, Jr, rating ~6, The Farmer in the Dell
7 unknown boy, ~rating 6, Jingle Bells - Deck The Halls
8 unknown young boy, ~rating 6, There's A Hole in the Bucket, 2 posts
9 Christian Tyler Buenaventura, rating ~5, Three Little Fishies, shortalls, several posts
A Paul Smith, rating ~4-5, Shortenin' Bread, several posts (A Day at Old MacDonald's Farm)
B Unknown teen boy, rating ~4-5, If I Had a Hammer (also with boy #F)
C Boy (name forgotten), rating ~4-5, I've Been Working on a Railroad
D David Chan?, #9?, rating ~3, see C
E unknown boy, sitting, belt, rating ~3-4, Deep in the Heart of Texas
F unknown young boy, see B
G TV Shows teen boy Kamran Kamjou (sorry, I 1st thought it's #5)
H TV Shows, Chris Aguilar, sitting westernlike dark blue
I teen boy from Mashed Potato Time, season 3, maybe Aaron Harvey
J one young boy in Practice Makes Perfect (pic was there)
K one younger black boy also from Mashed Potato Time, Asa Karsten Bernstine
I think another boy Dava Schatz? (or girl) in white bibs in the TV Shows, (Sorry, this was just a pattern on the shirt).
https://biboverallsfilms.blogspot.com/2011/07/kidsongs_4.html
https://biboverallsfilms.blogspot.com/2022/01/list-60-kidsongs-girls.html