[3] Another contemporary review of the first volume noted "An astounding amount of reading, traveling, compilation, and patient research has gone into the preparation of this book", characterizing it as "a rich summary of an enormous lot of materials".
[4] An early review of the second volume described it as "a quarry of information on the subject which will be useful to scholars in many fields",[5] though it was noted that "The historical picture is curiously distorted" due to the Adventist focus on specific prophetic interpretations.
[8] Despite criticism of the work's limited focus,[9] the reviewer also noted "Specialists can find here a wealth of material",[10] and praised the care with which the research had been undertaken and presented.
[17] Ernest R. Sandeen, in commenting on this "monumental" work, nonetheless drew attention to the "pitfalls" facing those who follow "Froom's guidance uncritically".
While "useful as a reference work [and] astonishingly accurate", it is "virtually without historical merit when Froom lifts his eyes above the level of the catalog of the British Museum".
"[24] Froom died on February 20, 1974, at age 83 while working on his final book, The Holy Spirit – Executive of the Godhead and was buried in plot 860 of the George Washington Cemetery in Adelphi, Maryland.