Handwritten letter in crayon from the [last name redacted] family. Rolled into a scroll and tied with a rainbow called string. The letter features a quote, beginning with the question: "Did I offer peace today," from the Dutch-Catholic priest, Henri Nouwen.

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.

Large envelope with a message written in pencil. Two flower outlines, drawn in purple, surround the text. Blank back.

Collage with a hand drawn tree in the center; leaves made of multicolored tissue paper; trunk in black ink.

Zine page with bubble letters and information about the emotional value of hugs. Zine page with cartoon imagery and information about the value of hugs. A young boy hugs a globe, beneath the inscription: "Embrace the world one hug at a time."

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.

Laminated mixed media collage with paper, dried leaves, and marker. Tree in the center; two clouds and sun in upper register. Handwritten inscriptions in various marker colors on tree trunk and upper center. Minor bleeding to back and signs of water exposure; creasing.

Single sheet folded to created four-page program. Cover includes title, date and time, logo for African Methodist Episcopal Church, and list of speakers. Interior pages detail elements of the service and include the names of the victims of the October 27 attack. Back page includes acknowledgements and clip art image of hands.

Card with a peace sign, Star of David, and heart illustrated in marker on the front cover. The inside contains a heartfelt message from a Jewish student at Marjory Stoneman Douglas High School in Parkland, Fl. The student articulates their motivations as follows: "I feel connected to your community in a way I cannot describe. I can only tell you to stand together, and we will stand with you as well..." Some words have faded due to water exposure at the Wilkins memorial.

Post-it note with handwritten message in black marker. The message reads: "We will be better." Minor staining due to exposure to the elements at the Wilkins memorial.

Post-it note with handwritten message in black marker. The message reads: "What happened here will not be forgotten." Signed with a Star of David.

Note from a member of The Church at Severn Run in Severn, Maryland. The note reads: "May God bring you peace and blanket you with His love during this difficult time."

Handwritten note signed by Noah of Toronto. Written in black ink on the back of stationary with the logo of Marriott Hotels. Staining 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 of a mandala with other 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: "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.

Flyer with "Stronger Together" in blue and red handwritten font against photograph of the skyline of Pittsburgh with a tree imposed against the clouds. Includes information about event and the names of featured performers, as well as various logos. A small note reads: "In memory of our holy brothers and sisters who died sanctifying G-d's name at Tree of Life-Ohr L'Simcha."

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 messages of love and support. 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 is dated 11-4-2018 and reads: "Dear Friends, I wish I was there to put my arms around all of you but all I have is this paper and pen. May you sense comfort and care through these note and know that I and many more from the community in San Diego stand in solidarity with you and your community. We condemn such violence against God's children whom we all are on this earth and hope for a time of safety and peace throughout, soon!! God's peace, Sandy."

Folded card with marker illustration. Front and back cover features illustration of tree with heart superimposed on it. Interior features heart with X in center and words "We're all in this together. Things will get better. You're not alone."