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.

Collage with a hand drawn tree in the center; leaves comprised of multicolored tissue paper. Handwritten messages in black ink on either side of the tree.

Folded card on green paper. A faded peace sign appears on the front cover flap. Due to exposure to the elements at the Wilkins memorial, the message on this card is no longer visible.

Card from a student at West Allegheny Middle School in Imperial, Pa. The front features a hand-colored illustration of a flower with geometric motifs. The back contains a handwritten note, as well as a partial stock signature: "From your friends at West Allegheny Middle School."

Card from the Friendship Circle of Illinois. Front cover reads: "From: Menachem [last name redacted] To: Jewish Community of Pittsburgh." Inside reads: "To the Jewish community of Pittsburgh sheyichyu (may they live). Passed away: 11, Injured: 2 Yidden (Jews) + 2 policemen=4. Illustrated below there is a wagon holding the shooter, who says in a word bubble: "I just wanted to kill Jews." A man with a hat, perhaps a police officer, is seated on the right.

Card with polka dots on the cover. The card is addressed "Neighbors" and affirms the three senders' thoughts and prayers for the "victims, family members, and friends at Tree of Life."

Floral tag from floral arrangement, which reads: "With Love from our Family to Yours [heart]." The note is written in black marker on rectangular piece of wrapping paper with brown and red stripes.

Black and white sticker with the word "LOVE" in large capital letters.

Oral history with Jess Gold recorded as part of the Meanings of October 27th oral history project.

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter reads: "My prayer- my prayer is for all the people affected to be at peace. Please Lord look after their friends and family, loved ones in this time of need. In God's name I pray. Amen."

Post-it note with handwritten message in red marker. The note, which is encased in a large heart, reads: "Remember Always [Star of David]."

Wooden pedestal painted white with white Star of David and red heart affixed to front. Handwritten in pencil and black marker on the Star of David is the name "Cecil Rosenthal." Collaged onto the heart are white pieces of paper and a translation of Psalm 34:18: "The Lord is close to the broken hearted and saves those who are crushed in spirit." Affixed to one side of the pedestal is a black sticker with the word "LOVE" in white letters. Accompanying image shows all 11 Stars of David in the series.

Color photograph showing six children holding a banner that reads, "New Light Congregation." People in the background are wearing matching shirts from the congregation.

Poster with short messages and multiple signatures from students at the St. Joseph Catholic Parish Religious formation written in various colored markers.

Letter from Rev. Drew Shofner, the lead pastor at The Church at Severn Run in Severn, Maryland. Addressed: "TREE OF LIFE."

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.

Post-it note with handwritten message in black and red marker. The message reads: "Always in our heart."