Trust tax

My wife is the trustee of her late brothers trust. He passed in Nov 2018. Prior to his death, she was listed as the co-trustee along with this same brother. Now that she is the only trustee, she is keeping the trust intact and we have not made any changes. The trust holds property and a small bank account that reported about $97.00 in interest. We file joint. 

Do I need to account for this trust in our taxes, and if so, how ?