GRO Indexes

[Kit]

I'm looking at a woman who was born in 1922, a year before her parents married. She was registered under her mother's maiden name in the September quarter.

In the June quarter 1940 she was registered in her father's surname, with the registration hand written on the 1922 page but on the June quarter, not September quarter. This is found on FreeBMD, not on the GRO index.

On the GRO entry (MMN) it lists everything as normal but underneath says : "Occasional Copy: A"

What does that mean?

Also why would they not hand write her name on the correct quarter in 1922, or could they have made an error and used the same quarter they were in in 1940.

The MMN is unusual and as it is possible the lady is still alive I haven't put her name here.