This seemed to be a connection between the two families that was listed on a census page I had. Hope it helps someone. I'm not connected to either myself.

The following information is from:
1920 Census
Cincinnati, Ohio
Precinct C
January 2, 1920
Supervisor's District 248(scratched out) 1 written above
Enumeration District No 246
Sheet number: illegible(copy dark) B
Ward of City: 14
Enumerator: Daniel J. Kindel - 4701(?)


Visit 10-14
GEORGI, Caroline
head of household - 1
Owns/free
white widowed female, age 67
born in Ohio
parents born in Germany
Occupation: none

MUELLER, Viola
daughter
white widowed female, age 38
born in Ohio
father born in Germany
mother born in Ohio
Occupation: secretary/office

Mueller, Charles
grandson
white single male, age 13
born in Ohio
parents born in Ohio
Occupation: none (student)

Mueller, Grace
white single female, age 11
born in Ohio
parents born in Ohio
Occupation: none (student)