Post-it note with handwritten message in blue marker. The message reads: "R.I.P. we will fight for you. [Heart]."

Floral tag addressed to David Rosenthal. The tag features a white rose on the left and the stock message: "With Deepest Sympathy" in a band on the upper center.

Paper cut outs in the shape of a tree trunk on brown paper. The first cut out is a smaller tree trunk with branches. The second is larger and features a Star of David illustrated in white and paint and topped with a blue band of paper on the top.

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 You, I have so much I could tell you, but what I want to share with you is a feeling. I want you to always feel God's love for you! I know sometimes (many times) God's love feels hidden. Where is love's light in our times of darkness? Two things help me to remember God's love each day. I hope that they can help you too.

Large square card from a student at Fountain Valley School in Colorado Springs, Co. Card reads: "Dear members of Tree of Life[s], I am an international student from China. I heard the sad news about the sad thing [that] happened in the Synagogue. I felt really sorry about that and I know I can't do anything to let you feel better. But I am always on your side. Support the sad family. So please strong to stay together. Peace be with you. - Isabel L." Illustrated Star of David and peace sign on lower left.

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: "You are God's chosen people. He loves you so much and so do we. We pray that love wins in your synagogue every day. God bless, The Church at Severn Run." The church's contact information is included on the back of the envelope.

Grey and black sticker with the words: "You are beautiful" on the front. The back contains a hashtag and web link to the "You Are Beautiful" company website.

Post-it note with handwritten message in green marker. The message reads: "We will never forget. Love conquers Hate [heart]."

Post-it note with handwritten message in blue marker. The message reads: "Love not hate." Tape affixed on the bottom edge. Tearing and creasing due to exposure to the elements at the Wilkins memorial.

Post-it note with handwritten message in blue ink. The message reads: "Stronger than hate." Illustrated with a peace symbol. Color bleeding and staining due to exposure to the elements at the Wilkins memorial.

Laminated posterboard with a tree with heart shaped leaves in the center. Each heart contains a message or signature from sender. Blank back. Signed: "With love, the children of St. Patrick's School in Canonsburg."

Card addressed to Melvin Wax, written using personal details from various public sources.

Typed memorial note in honor of Richard Gottfried. The author recalls personal details about Gottfried's identity as a Jew and his commitment to the field of dentistry.

Printed paper square with the "Stronger Than Hate" emblem. Lamination has started to separate from the paper, as well as color loss, due to exposure to the elements at the Wilkins memorial.

Card from a student at West Allegheny Middle School in Imperial, Pa. The front features a hand-colored illustration a heart with 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 green and red marker. The message reads: "Love is stronger than hate. Rest in peace. Jaime." The "o" in love and the dot in the "i" in Jaime are written with hearts.

Business card from Pastor J. Hogan of Faithbridge Community Church.

Card from "Julia L." expressing solidarity with the community.

Folded card on light green paper with hand drawn illustrations in marker and pen. The front cover features a Star of David in black marker filled in with red scribble-scrabble. The inside contains an illustrated portrait of a young girl, labeled "Maya" in both Hebrew and English, wearing a short-sleeve t-shirt with a Star of David. Rainbow colored lines appear above the figure's head.

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter is dated 11/4/18 and reads: "Dear Tree of Life Synagogue, Please accept our heartfelt condolences in the loss of your beloved congregation members, from our congregation at Point Loma Community Presbyterian Church in San Diego, CA. In LA, I grew up living next to a Rabbi (Marvin Bornstein) and his dear family. He was familiar with loss as well, having left medical school in Vienna at the onset of WW II. I learned from his example of love, tolerance and peace.