Family sending pictures of ex

I am part of my husbands family group chat. Is it appropriate for my sister in law to send a picture from long ago of my husband with his ex girlfriend and my husbands side of the family? This is the ex girlfriend he was with right before me. Btw, I’m his wife and we have a child. They were together for 7 years so the picture is from a long time ago. She wrote “good memories” in the picture.