In this 2019 interview of Hal Shurtleff by Dr. Duke Pesta of the Freedom Project, Mr. Shurtleff discusses the Sam Blumenfeld Archive which contains much of the writings, and recordings of the late homeschool pioneer. The archive includes Sam’s “Alpha-Phonics” with all 128 lessons in audio and video, cursive lessons, Sam’s monthly newsletters, and publications from American Friends of Algeria and the Society of Jewish Americanists. Here is a link to subscribe to the archive: http://blumenfeld.campconstitution.net/main.htm