The record of their marriage can be found on Family Search in the database, Indiana Marriages, 1811-2007. This database has actual images of the records and this particular one is from the 1938-1942 Miami County, Indiana Index F. It is the fourth entry which begins on page 67. The record is spread out over three pages and contains a lot of information on the bride and groom including the street address.
The record reads as follows:
Groom: Graydon Reid
Residence of groom: Marion, Indiana (3212 W 10 or 20 - the street number is difficult to read)
Groom's age on next birthday: 36
Color: white
Occupation: machine operator
Place of birth: Bath County, Kentucky
Father: Nick Reid
Mother: Francis Colliver
Number of groom’s marriage: 2
Bride: Margaret V Koehler
Residence of bride: Marion, Indiana (1925 W 9th)
Bride's age next birthday: 24
Color: white
Place of birth: Cincinnati, Ohio
Father: Henry Koehler
Mother: Mary Pfeffer
Number of bride’s marriage: 1
Place of marriage: Peru, Indiana
By whom married: Mabel A Personett (Ms. Personett was the Justice of the Peace in Peru, Indiana.)
Date of marriage: 30 November 1942
Record Number: 1663