Post-it note with handwritten message in black marker. The message reads: "Love is strongest power exists." A Star of David appears below.

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.

Post-it note with handwritten message in black marker. The message reads: "We love you!" An illustrated heart appears in the upper right corner.

Zine page with bubble letters and information about the emotional value of hugs. Zine page with cartoons illustrating the emotional value of hugs, including a superhero, labeled "Hugs to the Rescue" and a young couple.

Card from a congregant at the Holy Angels Parish. The front cover contains a stock illustration of seven children holding hands around a table with a large goblet and loaf of braided bread, and seven doves. The illustration is labeled: "We are people of God's peace." The inside reads: "We must stick together in times like these because together we are STRONG and no one can take that away from us. Enzo."

Handwritten note written in black marker on white paper with the first names of the eleven victims of the October 27 attack. Creasing and staining due to exposure to the elements at the Wilkins memorial.

Card from a congregant at the Holy Angels Parish. The front cover contains a stock illustration of a haloed dove flying in front of Noah's ark. The inside reads: "Dear Tree of Life, I'm sorry for your loss. Hope everything goes well. From Bella [last name redacted]."

Floral tag from floral arrangement sent by Kathryn, Jim, and James. The tag reads: "With love from Kathryn, Jim, and James. May their memory be a blessing." Note is handwritten in black ink on white paper; staining and creasing due to exposure to the elements at the Wilkins memorial.

Card from the Friendship Circle of Illinois. The front cover reads: "To the Jewish community of Pittsburgh sheyichyu (may they live)." The inside reads: "I heard what happened and give my fullest sympathy. I am heartbroken by what happened, and really hope moshiach (the Messiah) will come and you'll be united with your dear ones." Spelling errors corrected for clarity.

Card from a congregant at the Holy Angels Parish. The front cover contains a stock illustration of seven children holding hands around a table with a large goblet and loaf of braided bread, and seven doves. The illustration is labeled: "We are people of God's peace." The inside reads: "Tree of Life Members, You are in our thoughts and prayers. -Holy Angels CCD."

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 prayer, unity, and love. The church's contact information is included on the back of the envelope.

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.

Note from a member of The Church at Severn Run in Severn, Maryland. The note reads: "Dear Blessed Children of God, I am praying for you in these extremely difficult days. Know that you are being held in prayer. You are loved. Praying for Peace, Comfort, and a Hedge of Protection around you and your community. With love, A follower of Christ."

Glass jar containing nine miniature Israeli and American flags.

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 is addressed to God, and conveys the writers pain about the October 27 attack. The church's contact information is included on the back of the envelope.

Handwritten card from a student at Goddard Middle School in Littleton, Co. The cover contains the following quote: "The past cannot be changed. The future is yet in your power." An illustration of three stick figures raising their hands, standing on a large rock with a Star of David at the center, before a mountainous landscape with a large sun and clouds, appears on the bottom center. The inside reads: "Dear Rabbi Jeffrey Myers, I'm very sorry about what has happen[ed]. I do know that people are also very sorry.