Correspondence
1920-1924
A -- Miscellaneous (1920-1924)
B -- Miscellaneous (1920-1924)
H -- Miscellaneous (1920-1924)
PETTIT -- PERSONAL (1920-1924)
W -- Miscellaneous (1920-1924)
1925-1929, A-L
A -- Miscellaneous (1925-1929)
B -- Miscellaneous (1925-1929)
C -- Miscellaneous (1925-1929)
D -- Miscellaneous (1925-1929)
F -- Miscellaneous (1925-1929)
G -- Miscellaneous (1925-1929)
H -- Miscellaneous (1925-1929)
K -- Miscellaneous (1925-1929)
1925-1929, M-Z
PETTIT -- PERSONAL (1925-1929)
R -- Miscellaneous (1925-1929)
S -- Miscellaneous (1925-1929)
W -- Miscellaneous (1925-1929)
1930-1932
A -- Miscellaneous (1930-1932)
B -- Miscellaneous (1930-1932)
H -- Miscellaneous (1930-1932)
PETTIT -- PERSONAL (1930-1932)
S -- Miscellaneous (1930-1932)
W -- Miscellaneous (1930-1932)
1933-1937
A -- Miscellaneous (1933-1937)
B -- Miscellaneous (1933-1937)
C -- Miscellaneous (1933-1937)
D -- Miscellaneous (1933-1937)
H -- Miscellaneous (1933-1937)
L -- Miscellaneous (1933-1937)
M -- Miscellaneous (1933-1937)
PETTIT -- PERSONAL (1933-1937)
P -- Miscellaneous (1933-1937)
S -- Miscellaneous (1933-1937)
W -- Miscellaneous (1933-1937)
1938-1946
A -- Miscellaneous (1938-1946)
B -- Miscellaneous (1938-1946)
C -- Miscellaneous (1938-1946)
H -- Miscellaneous (1938-1946)
L -- Miscellaneous (1938-1946)
M -- Miscellaneous (1938-1946)
PETTIT -- PERSONAL (1938-1946)
P -- Miscellaneous (1938-1946)
S -- Miscellaneous (1938-1946)
W -- Miscellaneous (1938-1946)
Manuscripts and graphs
Manuscripts and graphs by Edison Pettit
Manuscript by Harold Delos Babcock