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.

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 blue ink. The message reads: "May their memories be a blessing." Color bleeding due to exposure to the elements at the Wilkins memorial.

Business card for Richard C. Yeomans, a pastor and chaplain who founded Emergency Ministry Services.

Card addressed to David Rosenthal, written using personal details from various public sources.

Post-it note with handwritten message in red marker. The message reads: "99.9999999% of Americans are good and caring people!" Tape on the upper edge.

Floral tag from floral arrangement addressed to the members of the Tree of Life synagogue. The note is printed on a tag with a beige background from a local florist; tearing in the center right due to exposure to the elements at the Wilkins memorial.

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.

Folded card with marker illustration. Cover features Star of David and four hearts. Interior features illustration of tree and messages "We stand with you" and "Beth Chai Congregation stands with you."

Post-it note with handwritten message in black marker. The message reads, in Hebrew and English: "Rest in Peace." Signed by Rabbi Fred Pomerantz.

White synthetic tree with 11 pieces of black lace tied to branches and a rosary tied to top branch. Square base of tree has switch for battery operated power. Attached to front of tree is a greeting card with message from sender.

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: "Just because life is hard now...does not mean it will be forever challenging. Love in stronger than HATE. You just have to strong. We are praying. -Tree of Life members and all Jewish people. - From: Reena Weber and Holy Angels CCD, 8th grade." Illustrated with two small hearts.

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.

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."

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter reads: "We feel your loss! We feel your pain! We pray for you and with you!"

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter reads: "Know that our loving God is with you all- always. Our love is with all of you hoping you can get through this before [?] God- God will [?] love your deep faith. Know we are here in Pt. Loma CA. Feeling your pain."

Post-it note with handwritten message in black ink. The message reads: "You are so strong. Thank you for being so strong in the face of evil. Please be more Jewish. We must show our community's great life in the wake of antisemitism. That is the best revenge. Growth. Love. Life."

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter reads: "Dear Tree of Life, We are a Junior High small group from PLCPC. We are sorry for your loss. We are praying for the injured and those friends and family of those who died. We will continue to pray as your community continues to heal. Point Loma Community Presbyterian Church San Diego, CA. Mindy, Allison, Ellis, Mike, Logan, Georgia, Ana, Tessa, Sarah, Quinlan."