"American Geologist" Francis J. Pettijohn Signed FDC Dated 1953 Todd Mueller COA

Description

Up for auction
"American Geologist" Francis J. Pettijohn Hand Signed First Day Cover Dated 1953.
This item is authenticated by Todd Mueller Autographs and comes with their certificate of authenticity.
ES-4278E
Francis John Pettijohn
(June 20, 1904 – April 23, 1999) was an American
geologist
who served for many years on the faculty of
Johns Hopkins University
.
Pettijohn received his doctorate from the
University of Minnesota
in 1923 based on a study of
Precambrian
sedimentology
and
structure
of an area around
Abram Lake
,
Ontario
. In 1929 he obtained a position at the
University of Chicago
. He became a full professor there in 1949. In 1943 he published an important work on
Archaean
sedimentation. In 1952 he moved to Johns Hopkins University where he remained until retirement in 1973. He received the
Penrose Medal
from the
Geological Society of America
in 1975. Other awards include the
Twenhofel Medal
of the
Society of Economic Paleontologists and Mineralogists
, the
Wollaston Medal
of the
Geological Society of London
and the
Sorby Medal
of the
International Association of Sedimentologists
.
[1]
Francis J. Pettijohn medal from Society For Sedimentary Geology in 1992