Sunday Bulletin Our Sunday Bulletin is a rich document full of information for all. Follow events as they apply to members and friends of Historic Trinity. We provide it to you in both html and pdf format. You can view the document in the format of your choice. This is convenient for people who have attended our worship service and simply want to read the bulletin again. For those who are curious about Historic Trinity, we hope it will encourage you to visit us. Enjoy the Historic Bulletin in the format best for you! HTML format. .pdf format . You need Adobe Acrobat Reader to open the file. Email Historic Trinity for additional information.