SIR HUBERT WILKINS (1888-1958) was an Australian polar explorer, ornithologist, pilot, soldier, geographer and photographer who gained international renown for his pioneering flights in the Arctic and Antarctic. On 15 April 1928, Wilkins made an historic trans-Arctic crossing from Point Barrow, Alaska, to Spitsbergen, Norway. For this feat and his prior work in exploration, Wilkins was knighted.

In 1942 Wilkins and his friend, Harold Sherman, co-authored a book, Thoughts Through Space, about mind-to-mind communication, a subject both were interested in. Sherman, a member of the Forum studying the Urantia papers, introduced Wilkins to Dr. Sadler on March 5, 1942, while they were passing through Chicago on a book promotion tour. Wilkins was admitted to the Forum and, together with Sherman, attended his first Sunday meeting on March 8.

From that day on, Sir Hubert was thoroughly devoted to the Urantia papers and spent as much time as possible between assignments in Chicago to read the papers. During his visits he had long conversations with the Shermans, also in Chicago from 1942-1947 to study the papers. Many of Wilkins's thoughts and reflections about the Urantia Book are detailed in the five-volume of The Urantia Diaries of Harold and Martha Sherman.

Wilkins kept a detailed notebook throughout the years, which was stored on the premises at 533. It was returned to him after book publication, but for many years it was lost. In 2014 it resurfaced in the storage facility of one of Sir Hubert's heirs, Mike Ross, a Urantia Book reader who had discovered the revelation through his stepfather, Sir Hubert's secretary Winston Ross. Mike, with whom I had corresponded ever since publication of the original Sherman Diaries in 2002, granted Square Circles permission to transcribe and publish the Notebook before donating it to the Wilkins archive at Ohio State University. It is available as The Urantia Notebook of Sir Hubert Wilkins.

Once the Urantia Book was published, Sir Hubert became one of its most active promoters. He placed books in libraries and in the hands of truth seekers wherever he went on his travels. One such institution was The Explorers' Club in New York City. Recently a fellow Sir Hubert fan visited the Club and found his inscription inside the book: