Post-it note with handwritten message in black ink. The message reads: "Etz Chaim Hi. It is a tree of life for those who hold fast to it."

Handwritten card in green, orange, and red crayon on paper. The card reads, in large bubble letters: "Thinking of you" and illustrated with concentric hearts in red, orange, and green. Signed: "From Meira, West Orange, NJ." Tearing and creasing due to exposure to the elements at the Wilkins memorial.

Folded card with colored pencil illustration. Front shows a tree, smiley face, and is signed "Beatrice." Inside features assorted illustrations including three balloons, two hearts and a star, and large smiley face. Back shows three balloons.

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.

Preprinted card with swirling design on front. Interior includes handwritten message expressing solidarity with Tree of Life Congregation.

Glass vase with four blue and white star-shaped balloons and a miniature American flag. Handwritten in black marker on white balloon is "Love One Another Right Now" with two hearts. Attached to front of vase is typed note that reads, "For our beloved neighbors that worshipped at the Tree of Life Synagogue, with great sadness, but also with a recommitment to a world of justice, reason, and love - [redacted], Chatham University;-[redacted], Washington DC - [redacted], Fouzhou China- [redacted], Sao Paulo Brazil."

Printed Hanukkah note with edited photographs featuring the eleven October 27 attack victims with Hanukkah imagery in the background. From top-bottom and left-right: Melvin Wax, David and Cecil Rosenthal, Irving Younger, Daniel Stein, Bernice and Sylvan Simon, Jerry Rabinowitz, Joyce Fienberg, Richard Gottfried, and Rose Mallinger. A large blue Menorah with the words: "Happy Hanukkah appears below."

Card addressed to David Rosenthal. Cover features a reproduction of a painting by Frank Crosby, a resident of the Emmaus Community of Pittsburgh. The inside contains messages of love and support written by other members of the Emmaus Community.

Hallmark card from a member of St. Peter's Episcopal Church in Londonderry, New Hampshire. The envelope contains the following handwritten message: "With love, and healing thoughts-." The front cover says: "LOVE." The card inside is dated November 1, 2018 and reads: "Dear Congregation- My heart is filled with pain for you. We send you our love, and our hope for healing. Bruce [last name redacted] St. Peter's Episcopal Church. Londonderry, NH."

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

Program from November 4, 2018 Sunday worship at Lincoln Place Presbyterian Church in Pittsburgh. The eleven victims of the October 27 attack were memorialized in the church's prayers and remembrances for those who had passed in the past year.

Miniature New York State flag. Wrapped around stem of flag is a slip of laminated yellow paper reading, "In Memory of our Sister ROSE MALLINGER z''l -- To his family and community we pray Tanuchamo min hashamayim. May God in Heaven comfort you. The Principals, Teachers, Parents, Alumni, and Students of Magen David Yeshivah. Brooklyn, NY." Part of a series of 11 flags, each dedicated to one of the victims. Additional photograph shows the entire set of 11.

Card from a student at West Allegheny Middle School in Imperial, Pa. The front features a hand-colored illustration of a bird feather 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."

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter reads: "Dear Fellow Believer in God, May God bless you and your family."

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 God's support and contains prayers for the families and community. 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 reads: "Dear Tree of Life Synagogue, We learned in church today, our Pastor Karla lived in the community where the tragic incident happened last week. We feel even more insight and sorrow for all involved. We want to offer our love, empathy, future blessings and also prayers for every family affected. We grieve for you, we pray for you, we pray for us all to be as one, we love you. Your San Diego friends in Christ from Point Loma Community Presbyterian Church.

Folded card from a student at Fountain Valley School in Colorado Springs, Co. Cover features a large peace sign. Inside reads: "Dear member of Tree of Life, I am a Chinese student who study in FVS. I heard this bad event this morning. I feel sorry for your lost. We will support you any time. Best wishes, Iihan [last name redacted]." Illustrated with Star of David.