Judging by photos in my family, it was common between the two world wars for wedding photos either only to be of the bride and bridegroom, or of them plus the bridesmaids and best man.
In my childhood, my parents displayed a wedding photo of them alone taken in a studio. This was in Scotland at least usually taken on the day of the wedding.
The bride and groom drove to a local photographer from the church, while the wedding guests went directly to where the reception was to be held.
The fact that the bride's mother wasn't in the photo might indicate that she had gone to supervise the reception, or that she just didn't like "having her photy took"
Two of my parents friends only had a photo of the bride on show, both husbands having declined to use a photo of the happy couple.
I always found that a little odd.
Dr. Hilary Cass - report re trans.