Guide to the Hamilton Moore Jeffers papers MS.262

Alix Norton
University of California, Santa Cruz
1156 High Street
Santa Cruz 95064

Language of Material: English
Contributing Institution: University of California, Santa Cruz
Title: Hamilton Moore Jeffers papers
creator: Jeffers, Hamilton Moore
Identifier/Call Number: MS.262
Physical Description: 3.6 Linear Feet 5 half cartons, 1 document box, 1 half document box
Date (inclusive): 1895-1975


Collection is open for research.


This collection is organized into six series:
  • 1. Correspondence
  • 2. Research
  • 3. Personal
  • 4. Student notebooks
  • 5. Air Force materials
  • 6. Photographs
Materials within each series are arranged in chronological order, unless otherwise specified.

Biographical / Historical

Hamilton Moore Jeffers was an astronomer and astrometrist born in 1893 in Sewickley, Pennsylvania. He earned both his A.B. degree in 1917 and his Ph.D. degree in astronomy in 1921 from the University of California, Berkeley. After earning his Ph.D., Jeffers was appointed as an instructor of astronomy at the State University of Iowa, and stayed there for almost three years. In 1924 he accepted an offer as Assistant Astronomer at the Lick Observatory, where he had completed much of his graduate work while a student at Berkeley. Jeffers became a full astronomer in 1938, and remained at Lick until his retirement in 1961. He is known for his work in positional astronomy and for his use of the meridian circle, and was mainly interested in observations of minor planets, comets, and double stars. Jeffers contributed to the observatory’s Index Catalogue of Visual Double Stars, published in 1963, collaborating with W.H. van den Bos to list over 64,000 instances of double stars. During World War II, Jeffers left the Lick Observatory to serve in the war, first at the radiation laboratory at MIT, then as operations analyst for the Army Air Forces in Alaska and India. In 1950, Jeffers married Bobbe de Vore, a secretary at the Lick Observatory. He lived in Carmel, California, near his brother, poet Robinson Jeffers, and photographer Ansel Adams. Jeffers retired in 1961, and died in 1976 in Carmel, California.

Preferred Citation

Hamilton Moore Jeffers papers. MS 262. Special Collections and Archives, University Library, University of California, Santa Cruz.

Related Materials

Additional Jeffers correspondence from 1917-1956 can be found in Series 1 of the Lick Observatory records:

Scope and Content

This collection documents the work of Hamilton Moore Jeffers, an astronomer who spent much of his career at the Lick Observatory. Materials include his professional and personal correspondence, some research notes, personal and family photographs, class notes from his student work at the University of California at Berkeley, and reports and correspondence from his time as an operations analyst in the Air Force during World War II.

Publication Rights

Property rights for this collection reside with the University of California. Literary rights, including copyright, are retained by the creators and their heirs. The publication or use of any work protected by copyright beyond that allowed by fair use for research or educational purposes requires written permission from the copyright owner. Responsibility for obtaining permissions, and for any use rests exclusively with the user. For more information on copyright or to order a reproduction, please visit .

Subjects and Indexing Terms

Lick Observatory
Jeffers, Hamilton Moore
Jeffers, Hamilton Moore


Correspondence 1924-1975


Materials are arranged alphabetically by last name or by first letter of last name of the correspondent.

Scope and Contents

This series contains Jeffers' professional correspondence throughout his career in astronomy.
Box 1, Folder 1

A 1939-1972

Box 1, Folder 2

B 1933-1964

Box 1, Folder 3

C 1942-1959

Box 1, Folder 4

D 1945-1970

Box 1, Folder 5

E 1949-1962

Box 1, Folder 6

F 1945-1961

Box 1, Folder 7

G 1950-1972

Box 1, Folder 8-9

H 1931-1971

Box 1, Folder 10-12

Hertzsprung, Ejnar 1937-1965

Box 1, Folder 13

I 1956-1973

Box 2, Folder 1

International Astronomical Union (IAU) 1960-1975

Box 2, Folder 2

J 1931-1966

Box 2, Folder 3

K 1935-1964

Box 2, Folder 4

L 1929-1975

Box 2, Folder 5

M 1931-1970

Box 2, Folder 6

Marsden, B.G. 1960-1974

Box 2, Folder 7

Maxwell, A.D. 1935-1941

Box 2, Folder 8

McLaughlin, Dean 1940-1941

Box 2, Folder 9

Merton, Gerald 1947-1958

Box 2, Folder 10

Muller, P. 1949-1959

Box 2, Folder 11

N 1924-1958

Box 2, Folder 12

National Science Foundation (NSF) 1954-1962

Box 3, Folder 1

O 1946-1967

Box 3, Folder 2

P 1932-1965

Box 3, Folder 3

Potwin, Leslie G. 1940-1944

Box 3, Folder 4

Q 1957

Box 3, Folder 5

R 1936-1974

Box 3, Folder 6

Roemer, Elizabeth 1956-1960

Box 3, Folder 7

Ross, F.E. 1951-1966

Box 3, Folder 8

S 1931-1974

Box 3, Folder 9

Schlesinger, Frank 1930-1936

Box 3, Folder 10

Shane, C.D. 1938-1973

Box 3, Folder 11

Stebbins, Joel 1940-1942

Box 3, Folder 12

Strand, K. Aa. 1937-1961

Box 3, Folder 13

Struve, Otto 1941-1955

Box 3, Folder 14

T 1938-1964

Box 3, Folder 15

U 1931-1950

Box 3, Folder 16

V 1936-1964

Box 3, Folder 17

Van den Bos 1947-1971

Box 4, Folder 1

Vinter Hansen, Julie 1936-1958

Box 4, Folder 2

W 1935-1973

Box 4, Folder 3

Whitford, A.E. 1957-1966

Box 4, Folder 4

Wright, W.H. 1938-1942

Box 4, Folder 5

Y 1932-1956

Box 4, Folder 6

Z 1931-1935

Box 4, Folder 7

Group letters 1953-1960

Box 4, Folder 8

Unidentified 1943-1972


Research 1931-1975

Scope and Contents

This series includes Jeffers' research notes as well as correspondence, reports, reprints, and other collected material on Jeffers' work on various projects, such as comets, double stars, and Mars.
Box 4, Folder 9

"Observations for the International Longitude Operation" 1933

Box 4, Folder 10

Lick Observatory work 1936-1960

Scope and Contents

includes annual reports
Box 4, Folder 11

Comets 1939-1956

Box 4, Folder 12

Mars 1953-1972

Box 4, Folder 13

Scale Value 36" 1954-1957

Box 7, Folder 1

Double stars 1952-1962

Box 4, Folder 14

Miscellaneous subject files 1931-1975

Scope and Contents

Includes reprints, clippings, articles, and other collected research materials on a variety of topics.

Personal 1907-1974

Box 5, Folder 1-3

Correspondence 1907-1974

Box 5, Folder 4

Jeffers family estate 1920-1960

Scope and Contents

Includes information on the Jeffers estate, trust, and Hamilton's will, and information on Anna McCord.
Box 5, Folder 5

Foreign trips 1938-1959

Scope and Contents

Includes materials from Jeffers' 1958 trip to Chile and Peru.
Box 5, Folder 6

Pilot's kit, licenses 1940-1973

Box 5, Folder 7

Receipts 1941-1961

Box 5, Folder 8

Lick Observatory employment 1947-1958

Box 5, Folder 9

Carmel house plans, blueprints undated


Student notebooks 1920

Box 5, Folder 10

Hansen's General Perturbations 1920

Box 5, Folder 11

Mathematics - Special functions 1920

Box 5, Folder 12

Satellite Theory 1920

Box 6, Folder 1-3

Air Force materials 1943-1952

Scope and Contents

This series includes reports, photographs, notes, and correspondence related to Jeffers' time as an operations analyst in the U.S. Army Air Force during World War II.
Box 6, Folder 4-7

Photographs circa 1895-1965 and undated

Scope and Contents

This series contains photographic prints, including portraits, and some negatives. Photographs mainly portray Jeffers and his family; views of the family homes, gardens, and pets; and Jeffers' work at Lick Observatory and during his time in the Air Force during World War II.