Typed bilingual Hebrew and English letter from a student at Hebrew Academy, a private Jewish day school in Montreal, Quebec. In English the letter reads: "Dear Rabbi, I hope all is well. I'm talking to you from Montreal. I heard what happened last week and I want to say we have been saying Tehillim (Psalms) for you guys in Pittsburg[h]. The whole Jewish community is so sad and I want to say that we are really sorry. I hope all the injured will be okay and heal faster. Sincerely, Joshua [last name redacted]."

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter reads: "To The Dear Tree of Life Community, I am so, so sorry for the loved ones you have lost in the most unthinkable of ways. Your brothers and sisters in San Diego, at Point Loma Community Presbyterian mourn with you. We pray that you will find a peace that goes beyond human understanding. Know that I am committed to doing- as much as any one person can do to build bridges of love, compassion, and shalom, and that I will always remember your family of faith while doing so.

Note from a member of The Church at Severn Run in Severn, Maryland. The note reads: "Dear Blessed Children of God, I am praying for you in these extremely difficult days. Know that you are being held in prayer. You are loved. Praying for Peace, Comfort, and a Hedge of Protection around you and your community. With love, A follower of Christ."

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.

Card from a student at West Allegheny Middle School in Imperial, Pa. The front features a hand-colored illustration of a leaf with geometric motifs. The back contains a handwritten note, as well as the stock signature: "From your friends at West Allegheny Middle School."

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.

Card from a student at West Allegheny Middle School in Imperial, Pa. The front features a hand-colored illustration of a bird with a leaf in its mouth and various geometric and floral motifs. The back contains a handwritten note, as well as the stock signature: "From your friends at West Allegheny Middle School."

Post-it note with handwritten message in black marker. The message reads: "We wish you peace and love from NY. The Brodys."

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.

Card with large pink rose on the cover with note from Amanda, Jon, Anne Elisabeth, Daniel, and Jay [last name redacted] inside."

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

Light blue card with cut corners. A schematic illustration in blue pencil appears on the center-right, a scribble-scrabble line in black pencil on the center-bottom. Due to exposure to the elements at the Wilkins memorial, the message on this card is no longer visible.

Post-it note with handwritten message in black ink. The message reads: "God's love for the Jews, his people is stronger than the wicked mess of the evil. May the Jews be blessed forever. H. [last name redacted]." Staining and color bleeding due to exposure to the elements at the Wilkins memorial.

Handwritten note in red ink on white paper glued to black paper tag with gold string. The note reads: "Strong Than Hate. RIP."

Post-it note with handwritten message in blue marker. The message reads: "No hate" [heart, broken heart]. Just [heart]."

Note addressed to all the victims of the October 27 attack. Written on a dark grey card.

Notecard with green line on the right which reads: "This was wrong and shouldn't have happened. Our hearts go out to you. We know that love is stronger than hate."

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'm sorry for all of the uncalled for events and all of the inconvenience of them. We hope you all feel better and don't worry but keep them in mind. Sincerely, Michaela [last name redacted] from Holy Angels CCD."