Rectangular card from a student at Fountain Valley School in Colorado Springs, Co. Front reads: "Tree of Life" and features a Star of David and a peace sign. Back reads: "Dear members of Tree of Life: I'm a Chinese high school student who study in U.S. After I heard the news that what happened in Tree of Life at this weekend. I'm extremely shocked and I still cannot believe that. We really against the discrimination between the religions and I believe that hate is no allowed between religions.

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter reads: "Tree of Life Synagogue- We in San Diego stand with you and all send all our love. Tom and Linda [last name redacted]."

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

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 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: "Everyone will stand with you through these tough times. -Flynn."

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.

Post-it note with handwritten message in blue ink. The message reads: "We love you. You are all so strong." Signed with a heart. Color bleeding due to exposure to the elements at the Wilkins memorial.

Handwritten card in blue and purple marker on paper. The card features a large heart, over a Star David, with the first names of the eleven victims of the October 27 attack. The card reads: "We can't take away the pain, we can only add our love. Love, The Ettingers."

Post-it note with handwritten message in black ink. The message reads: "Z"L."

Typed letter on Alfred University letterhead in hardback certificate holder, signed by Alfred University President Mark Zupan.

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: "Dear friend, Greetings and peace be with you today. I thank God for the opportunity to write to you this morning. I just wanted to let you know that I am committed to praying for you and serving our communities together. The world is full of broken people. Some of these broken people have caused unimaginable pain. To you my Jewish friends.

Canvas with "We Are Better Than Hate" painted in orange letters with black border on a white background with black border. Canvas wrapped and stapled to wooden frame.

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 affirms the sender's belief that we are all God's children. The church's contact information is included on the back of the envelope.

Clear glass globe vase with rippled lip. Vase filled with translucent marbles and two synthetic light pink roses.

Clay pot containing white flowers with bow tied around stems. Bow made of gold-trimmed wired ribbon with multicolor leaves.

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: "We will pray for you. We God guide you through. Love, your friend at Holy Angels Church." Spelling errors corrected for clarity.

Handwritten note written in blue ink on lined paper from Jessica and Aron [last names redacted] from Ridgewood, NJ. Staining due to exposure to the elements at the Wilkins memorial. The back of the note features advertising for Market Central, one of the largest dining halls on the University of Pittsburgh's campus.

Card from a student at West Allegheny Middle School in Imperial, Pa. The front features a hand-colored illustration of a turtle with floral and geometric motifs. The back contains a handwritten note, a "Stronger Together" sticker, 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: "Dear Brothers and Sisters, May God give you strength and courage to overcome this tragedy and bring even more conviction and purpose to the Tree of Life congregation. [First name illegible, last name redacted]."

Floral tag from floral arrangement sent by Daniel Mulhall, the Irish ambassador to the United States, on behalf of the people of Ireland. The note is printed on a tag with a beige background from a local florist.