Handwritten note written on lined notebook paper reading: "Filled with grief- Prayers for peace and justice."

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.

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.

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.

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 contains wishes for peace and divine love, and includes a quote from 1 Peter 4:8. The church's contact information is included on the back of the envelope.

Envelope and floral tag addressed to Jerry Rabinowitz. The envelope reads: "Jerry" and is illustrated with a heart and tree with barren branches. The tag features an illustration of a sheep with wildflowers growing out of its head. The tag contains a personal message to Jerry and features an illustration of a grass field with tree, large heart, and flowers in the lower center.

Page of blank stationery. Navy blue printing on white paper. Header read, "Congregation Oher Chodosh 79-81 Roberts Street, Pittsburgh, Pa. 195_."

Folded card with marker illustration. Cover features illustration of Star of David inside heart under name "Aden." Interior features illustration of five balloons and words, "We want you to know that you are not alone. Sending warm thoughts and hugs to your community. Beth Chai."

Note from a member of The Church at Severn Run in Severn, Maryland. The note reads: "To my brothers and sisters: I can't begin to tell you how sorry I feel that the actions of one person this past week affected the Jewish families in our [?] country... Please know that my prayers and thoughts are with you. I know that God will us. I love you always."

White and purple envelope with handwritten inscription in blue ink addressed: "To: The family of Tree of Life." The location of the sender's home, Norfolk, Virginia, is inscribed in the lower left corner. The upper flap on the envelope's reverse is inscribed with the following note: "We are so broken hearted for your loss." Staining and creasing due to exposure to the elements at the Wilkins memorial.

White posterboard with handwritten messages and hand drawn illustrations in black marker. A large tree with the words, "We are all of Tree Life," appears in the upper center. Various messages by over two-dozen people appear throughout.

Handwritten card in colored pencil on paper. The card features a large tree resting on grass in the lower center and reads: "We're thinking of you Tree of Life." It is signed: "[Lov]e Shayna and West Orange, NJ."

Card with photograph of ribbons laid out in a rainbow pattern. The inside reads: "God bless. Sandy and Cheri."

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

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

Folded card on light blue paper. Extensive creasing and blue and yellow staining. 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 marker. The message reads: "Love is strongest power exists." A Star of David appears below.