Post-it note with handwritten message in blue marker. The message reads: "What is the name of the deep breath I would take over and over for all of us? Call it whatever you want, it is happiness, it is another one of the ways to enter fire. -Mary Oliver."

Hardwritten card in blue pen on white paper, offering condolences following the October 27 attack.

Post-it note with handwritten message in black marker. The message reads: "May god be with you. Cierra [last name redacted]. Pittsburgh, PA."

Post-it note with handwritten message in black marker. The message reads: "Jersey strong supports #pittsburghstrong. God bless you all!"

Handwritten note on the back of a piece of paper with the letterhead of KYW News Radio. The note is very difficult to read due to extensive creasing and fading caused by exposure to the elements at the Wilkins memorial.

Hallmark card from a member of St. Peter's Episcopal Church in Londonderry, New Hampshire. The front cover features a dog. The inside reads: "God loves you and we do, too! Love, NATALIE" and features illustrated stick figures representing the sender, labeled "Me" and "My friend Benji."

Paper cut outs in the shape of a tree trunk on brown paper. The first cut out is a smaller tree trunk with branches. The second is larger and features a Star of David illustrated in white and paint and topped with a blue band of paper on the top.

Note from a member of The Church at Severn Run in Severn, Maryland. The note is enclosed in an envelope with church letterhead, reading: "The Church at Severn Run: Love Well, Live Jesus, Believe Big!" The note inside reads: "God Bless You." The church's contact information is included on the back of the envelope.

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter is dated Nov. 4, 2018 and reads: "To the beautiful Tree of Life community in Pittsburgh from a Presbyterian in San Diego: Shalom... May your deepest sorrows be comforted by God's soothing peace. May you feel the support of others around the world. Imagine me, a teacher named Carolyn V., carrying 2 buckets to hold your tears and mine as I grieve with you. Never let evil win. LOVE WILL TRIUMPH. Love from C. [last name redacted] [heart symbol]."

Hallmark card from a member of St. Peter's Episcopal Church in Londonderry, New Hampshire. The envelope contains a handwritten message: "With Peace and in Repentance and friendship of Spirit." The front cover reads: "Peace" and features a sandy landscape with a blue sky and orange flowers. The inside reads: "Dear Friends in the God of Abraham, My spirit and my prayers have been with you this past week. Prayers of love, courage, hope, and prayers of repentance for all little ways in which my own way of living accommodates any hatred, bigotry, or antisemitism.

Handwritten card from a student at Goddard Middle School in Littleton, Co. The front cover features the following quote attributed to C.S. Lewis: "Hardships often prepare ordinary people for an extraordinary destiny. C.S.

Sticker with Shabbat-related imagery. Two pink Shabbat candles, labeled in Hebrew: "Shabbat Shalom," appear in the center. Two women, covering their hands, as they bless the candles, appear on either side. Doves appear in the lower right and left corners. Signed lower left.

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter reads: "To our esteemed sisters and brothers I offer sorrow in your losses, comfort to enter into your memories and many blessings for your bright future as a synagogue to overcome. With all my love- Russell [last name redacted]."

White envelope with blue border and curlicue designs in the four corners. Handwritten note in black ink on the recto reads: "Tree of Life Congregation." Staining and color fading due to exposure to the elements at the Wilkins memorial. The reverse side features a diamond pattern and has suffered from extensive tearing due to exposure to the elements at the Wilkins memorial.

Card from a congregant at the Holy Angels Parish. The front cover contains a stock illustration of a haloed dove flying in front of Noah's ark. The inside reads: "Dear Tree of Life members, I am keeping you and all of the others affected by this tragedy. My deepest sympathy, Molly [last name redacted] Holy Angels CCD."

Square card with white and yellow text against blue background. Card reads, "Mitzvah4Pittsburgh. Some spread darkness. We spread light. Choose a good deed. Choose a Mitzvah. Add light to the world," followed by four options and a place for respondents to list their name and email address. Some names and email addresses have been redacted for privacy.