Charles Terwilliger contributed many in-depth articles to the NAWCC Bulletin, in addition to book reviews and other notes. Below are a selection of his work. The links to pdf files Can be found on the National Association of Watch and Clock Collectors (NAWCC) website – available to NAWCC members only. In his day, Charles Terwilliger was much respected and appreciated by the NAWCC as can be seen by his Obituary in the Bulletin (see below)

The Becker Talking Clock by Charles O Terwilliger
vol 8 issue 77 page 323
pdf file

“IGNATZ” “The Craziest Clock in the World by Charles O Terwilliger, Jr.
vol 8 issue 82 page 659
pdf file

A Sequel To “IGNATZ” “The Craziest Clock in the World by Charles O Terwilliger, Jr.
vol 9 issue 90 page 631
pdf file

Eugene L Fitch …. and the Plato Clock
vol 11 issue 112 page 446
pdf file

Fifty Animated Dial Clocks from the collections of Lt. Col. Willard J Clarida and others by Charles Terwilliger
vol 12 issue 129 page 969
pdf file

Germany’s Older Clock Factories – Their Trade Marks and Dates of Manufacture – by E.D. Bush and Charles Terwilliger with great assistance from E.J. Tyler
vol 19 issue 187 page 156
pdf file

John C Briggs and Rotary Pendulum Clocks by Charles Terwilliger (NY)
vol 20 issue 193 page 99
pdf file

Another Fifty Animated Dial Clocks by Charles Terwilliger (NY)
vol 20 issue 195 page 370
pdf file

Two Italian Novelty Clocks
vol 23 issue 12 page 238
pdf file


Charles O Terwilliger, Jr (1908-1988) In Memoriam

From the NAWCC Bulletin

On February 17, 1988, Charles O. Terwilliger, Jr. died in Bronxville, NY, after a long illness. He was 79.
Charles Terwilliger, NAWCC #819, jointed NAWCC in January 1950. During his 38 years as member he made numerous contributions to the Association. In recognition of his service to NAWCC he was made a Fellow in 1959 and became a Star Fellow in 1984.

In 1951 Terwilliger was appointed Membership Chairman and began the first active membership campaign. His campaign tactics included placing ads about NAWCC in various publications and devising a membership “prospectus.” Every copy of the December 1951 BULLETIN contained the new membership “prospectus.” Members were asked to help spread the word of NAWCC by putting up 14″ by 17″ membership display cards throughout their communities. This active campaign resulted in an increase of 429 members over a twelve-month period,
almost doubling the total number of NAWCC members.

Mr. Terwilliger has held various positions within the NAWCC hierarchy. He served two terms, 1953-55 and 1955-57, as one of three National Vice-Presidents. He was elected to serve three terms as an NAWCC Director: 1959-61, 1963-67 and 1977-81. He served as the Nominations & Elections Committee Chairperson 1955-57. He served on the Membership Committee for twelve consecutive years, 1957-69. He was selected as Co-Chairman of the Publicity Committee for the 1959-61 term, and served on the Committee from 1967-73. With the exception of four years (two terms 1969-71 and 1971-73), Charlie was a member of the Editorial Committee from 1963 to the present. His current term on the Editrial Committee was schedule to end in 1989. While he would never accept top office he was certainly a dedicated worker.

Mr. Terwilliger was active in supporting the NAWCC Museum. He donated various items throughout the years, as well as served on committees associated with the Museum. He served on the Special Committee for Organizational Study from 1973-75. He was appointed to the Acquisitions Committee to serve from 1985-87. He served two terms as a Museum Trustee from 1981 to the present. During his 1981-83 term he was Treasurer of the Trustees.

Not only has Charles Terwilliger been active in the governing body of NAWCC but he has interacted with the members. He served for over 16 years as an Answer Box team member. His first Answer Box reply was published in the February 1972 BULLETIN, and the February 1986 BULLETIN noted that he had replied to 700 Answer Box questions. Terwilliger was known to be an expert in the field of 400-day clocks. He wrote several books and BULLETIN articles on this subject. He also shared his knowledge with other NAWCC members by presenting programs at Chapter meetings. On July 11, 1987 at a Chapter # 89 meeting, he completed his 18th presentation on 400-day clocks to a Chapter. With so many friends, this gentle man will be greatly missed1.
~ Dr. James W. Gibbs, FNAWCC

Reference

  1. Charles O Terwilliger, Jr (1908-1988) In Memoriam by Dr. James W Gibbs, FNAWCC
    vol 30 issue 254 page 238
    view pdf

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Charles O Terwilliger, Jr.

Charles Terwilliger’s contribution to horology can best be described as innovative and colorful. Not only did he revolutionize the accuracy of the 400-Day Clock, his research and clock reproductions continue to impact the world of clock collecting to this day.

HeroesofHorology.com was established in 2025 to honor the memory of Charles O Terwilliger, Jr and the company he established, Horolovar, and to fulfill the dream of his son, Robert Terwilliger, who wished for this biography to continue on after he himself passed away.