Skip to main content


Dr. R. R. Parker and wife, Adah N. Parker, working on tick research during their honeymoon at Powderville, Montana in 1916

small (250x250 max)
medium (500x500 max)
Large
Extra Large
large ( > 500x500)
Full Resolution
  •  
Loading content ...
you wish to report:


...
Select the collections to add or remove from your search
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
 
OK