By any chance did the the Drug Co have drug stores such as the Haag Drug
Stores? If so, I remember them in the Midwest.
I found the following:
1910 census Indianapolis,Marion Co.,IN Ward 4
Oscar Haug 29 1881 IN parents Ger
Bessie 24 IN
I am not sure if this is Oscar Charles as he gave as his wife's name Betty A
when he registered for WWI .Perhaps Bessie was a nickname or this is a
different wife.
Then I found them on the 1920 census in Indpls,Marion Co
Oscar C Haug 37 IN md at 25 parents Ger credit wholesale grocery
Bessie 33IN parents INmd at 20
1930 Indpls,Marion Co.,IN Ruckle St
Oscar C Haug 47 IN parents Ger sect. grocery
Bessie 42 In parents IN
Apparently they did not have children.
Your great-grandparents may have traveled by train at least from NY to
Chicago.
A lot of times they went where relatives were. There was a Haug family
already in Indianapolis at the time.
DONNAGENE IN CA