Philip Birnbaum

He also served on the board of directors of the Histadrut Ivrit b'America, an American association for the promotion of Hebrew language and culture.

His Siddur and Machzor were pioneering in that the Hebrew text is of uniform typeface, "unlike the helter-skelter boldface paragraphing … found in Old World siddurim".

Until the advent of the Artscroll and Koren translations,[5] the Birnbaum Siddur and Machzor were widely used in Orthodox and Conservative synagogues, selling over 300,000 copies.

"[8] Birnbaum's original gravestone misspelled his name, had the wrong birth year, and called him a "renouned author & scholar".

In 2022, the original gravestone was replaced with one with all three mistakes corrected and a Hebrew verse from the High Holiday liturgy added.