Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter reads: "To our Brothers and Sisters at Tree of Life Synagogue, First off, my heart is saddened by the unspeakable tragedy that visited your community last week. My (one) heart breaks with you and we mourn beside you. Second, I feel anger that this could happen. Anger that anyone who have so much fear and brokenness in them that they could commit this kind of act. Finally, and most profoundly, I feel a sense of hope!

Business card from Reverend John Shaver of San Dieguito Methodist Church in Encinitas, Ca.

Card from a student at West Allegheny Middle School in Imperial, Pa. The front features a hand-colored illustration of the words: "Keep Going" and arrows, stars, and other floral motifs. The back contains a handwritten note, as well as the stock signature: "From your friends at West Allegheny Middle School."

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter reads: "God be with each of you."

Double-sided letter. The front features a letter written in blue ink on a white background. The letter is addressed to the families and friends of the October 27 attack victims, the three congregations that gathered to pray at the Tree of Life synagogue, the people of Squirrel Hill, the people of Pittsburgh, as well as all citizens of the world. The addressees are listed in six respective hearts in the upper center. The hearts are surrounded by the branches of two trees which frame either side of the letter.

Two-sided sheet of printed text. Front contains an open letter to the Jewish community of Pittsburgh from the members of the Vaad Harabonim. Back contains a day-long schedule of classes and programs, as well as the names of the victims of the October 27 attack.

Hand painted sign with an illustration of a landscape with a blue sky, sun, green grass, and floating hearts. The message, "You are the best," appears on the center right.

Handmade sign with the words to the traditional Jewish mourning prayer, "Kaddish," transliterated into English and written in pencil. The text is enclosed in a cloud-shaped thought bubble outlined in black. The Stronger Than Hate Steelers' logo with a Star of David appears in the foreground.

Cardboard sign with the message "Words Matter" painted in white. Blank back. Warped from water damage.

Post-it note with handwritten message in black ink. The note is written in Hebrew and English. Translated into English, the message reads: "All of Israel are connected to one another. We are with you!"

Card from a congregant at the Holy Angels Parish. The front cover contains a stock illustration of seven children holding hands around a table with a large goblet and loaf of braided bread, and seven doves. The illustration is labeled: "We are people of God's peace." The inside reads: "We are all praying for you. None of this should happen. Stay strong."

White posterboard with handwritten messages on either side. The front side reads: "154 mass shootings this year alone. How many lives are worth your assault rifle?" An asterisk connects to the following sidebar: "None committed by black men, illegal aliens, or women." 154 tally marks appear above. The back reads: "Life, Liberty, and the Pursuit of Happiness."

Card with gold background and illustration of a rose bud stem with leaves. The message inside is addressed to the members "who were, are, and will be part of the Tree of Life synagogue" and affirms the sender's solidarity and God's greatness.

Note in black ink on cardboard reading: "I do not have much and I have fallen far from the faith but I stand with you. I pray for you. I love you not because of Religion or faith but because we are All Human. - A Mother."

Post-it note with handwritten message in red marker. The note, which is written inside a heart, reads: "We love you guys." Two Stars of David appear on the lower right and center.

Typed letter addressed to Jerry Rabinowitz from Louis D. Louis identifies himself as a gay patient of Rabinowitz during the 1980s. He thanks for Rabinowitz for his sensitivity and care. The letter is enclosed in a plastic page protector and has tape residue on the back from the Wilkins memorial.

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: "Stay strong, remain faithful, know you're loved. - Scott." The church's contact information is included on the back of the envelope.