I definitely do not mean to pry (and please only share what you feel comfortable with), but do let me know if you feel something would be helpful for me to know ahead of time (divorce, death, strained relationships, etc).
This information will be used in case of emergency. Primarily if you are not doing a first look and/or everyone is getting ready in different locations.
For example, grandmother's ring, mother's lace from her dress, heirloom handkerchief, special garter, etc.
Feel free to just list the main colors you are using for bridesmaid dresses, flowers, decor, etc.