Thank you note question

[ladygrey]

My work baby shower was last week and I am writing thank you notes. I received a gift from coworkers in a different office than mine, but only 5 out of the 11 people who work there signed the card. Should I assume that it was a gift from everyone in the office and address it to "Dear XYZ Office" or should I address it to those 5 individuals?

Based on how shower gift collections work in my office, I would think that only those who contributed $$ toward the gift would have signed the card.

[Deleted]

I would address it to those who signed the card.