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."

Black ribbon with gold letters stapled along its length. Message reads, "We will never forget." Ribbon is faded from sun exposure.

Card on pink paper with hand drawn illustrations and handwritten note. Written in a child's handwriting, the card reads: "We love you" in the upper center and is signed "Hannah" in the lower center. Various red outlined hearts with blue, red, and green shading appear on the left; a stick figure appears on the right.

Trifold pamphlet on off white paper with typed text. Cover features photograph of chandelier from the Rodef Shalom Congregation sanctuary, quote by Ahad Ha'am, and congregational logo. Interior lists details for Friday night and Saturday morning services, lists the names of the victims of the October 27 attack, and reprints original poetry by Rabbi Danny Schiff, Chana Brody, and Valerie Bachrach. Back cover lists officers of the congregation. Two-page insert lists upcoming events at the congregation.

Floral tag from floral arrangement sent by the Alexander family. The tag reads: "Wishing you all peace" followed by two hearts. Message handwritten in blue ink on a printed tag with a red border and a floral bouquet on the lower left.

Post-it note with handwritten message in black ink. The message reads: "We think of you every day. We are continuing to be and do Jewish in their honor. We are sending so much love to you, and our prayers are for you."

Multicolored printed card with message that affirms the value of kindness.

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.

Folded card on light blue paper. The inside features an illustration of a young girl wearing a Star of David t-shirt. The girl is outlined with various scribble scrabble lines in black pen. Smudges of a rainbow appear on upper left side. The front cover features a Star of David outlined in black marker and shaded in purple. Smudging, color bleeding, and staining due to exposure to the elements at the Wilkins memorial.

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter reads: "From Point Loma Community Presbyterian Church, San Diego. Dear members of Tree of Life synagogue, Our hearts ache for your loss and we pray that God will give you peace and hope. We also pray that as a nation and as people of God, we can overcome this senseless hatred. We love you, Judy [last name redacted]."

Sepia-tone photograph showing large group of people in a banquet hall decorated with streamers, Stars of David, and American flags. Text at bottom reads "The 25th Anniversary banquet of the Congregation 'Oher Chodosh Anshe Romanian' February 26, 1928 Pittsburgh Pa." Original photograph is creased in several places and missing one corner. 

Post-it note with handwritten message in blue marker. The message reads: "When there is dark be the one who turns on the light."

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 words of prayer and encouragement. The church's contact information is included on the back of the envelope.

Post-it note with handwritten message in blue ink. The message reads: "We love you. We are here for you." Color bleeding due to exposure to the elements at the Wilkins memorial.

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.

Card addressed to Melvin Wax. 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.

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.