Otzar Harabbanim describes him as (6762): born in 1892, Rav Gaon VeHassid...Sofer Mahir, Rav in Sochochin, in 1936 made Aliyah to Tel Aviv. Passed away in 1953, authored Tal Leyisrael, Ateret Tuviah and Eretz Tova and other Sefarim. He also published a Hesped on the Ger Rebbe, titled Evel Kaved.
R. Guttentag signed several times on free-ends of the books and there are several stamps of his in the book as well. Several margin notes in his handwriting appear in the book as well. The handwritten pages contain his own commentary on the book Samlah Chadasha and Tevuot Shor.
At end of his writings, R. Guttentag writes "הערות אלו כתבתי בעיר קולשק בשנת תרס"ג בהיותי שם ימים אחדים מסתתר מחמת האורב הרוסי שבקש לתפסני לעבודת הצבא"
which translates as "These comments were written in the city of Kolshek, in my stay there for a few days in hiding from the Ambushing Russians who were searching for me to conscript me to the Army"
|"הערות אלו כתבתי בעיר קולשק בשנת תרס"ג בהיותי שם ימים אחדים מסתתר מחמת האורב הרוסי שבקש לתפסני לעבודת הצבא"|
|Free-end of book|
|Stamps of Rabbi Gottenberg|
|Title page of book it is appended to|