In the photo left to right are;

 

Francis Arthur Leath, Laura Ann Ritchie (nee Brown) mother of the groom, Alan Ritchie (Groom), Alice Sybil Osborne (Bride), Annie Osborne (nee Aston) mother of the bride, A. Nuthall (Best Man)

 

Lower Left - Ethyl F. Ritchie (Bridesmaid)       Lower Right - Florence Moore (Bridesmaid)

 

Note - our Grandpa Ritchie gave me a basic ID of the people in the photo but through some research I found out who they are.  Francis Arthur Leath preferred to be called Arthur.  He later married Annie Osborne and became Step-father to Alan and therefore Grandfather to our Grandpa Ritchie.  Ethel was the name he gave for the woman in the lower left of the photo.  Since she is on the "Groom's" side I think she is Alan's younger sister, whom I identified in census info.