Handmade card in colored pencil on paper. The outside features a series of staples running down the side and two hole punches. Cream-colored yarn is tied in a bow around the left-hand hole. From right to left, the inside reads, in Hebrew: "Zachor" (remember) and "Love, Cat Dog. Me and family are so sorry." Assorted hearts appear on the right flap; a group of multicolored blocks with a heart-shaped cat or dog face on top appears on the left. The back is signed, on the lower center: "From Aviva and Shosie."

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." Signed "-Jenna [last name redacted]" in the lower right corner. The inside contains several messages, including: "We love [heart symbol] you... Get well soon!!!!... Get well soon... I'm praying for you...hope you get better...we hope you heal fast...get well soon.

Handwritten note written in black marker on recycled paper. The note reads: "Blessed are those that mourn for they shall be comforted. We grieve with you. Squirrel Hill Neighbors." Tearing due to exposure to the elements at the Wilkins memorial. The back of the note has the silhouette of a box with two circles on a grey background.

Folded card with marker illustration. Cover shows two balloons, a heart, and smiley face. Inside reads: "I hope everything gets better. I hope this never happens again. We are here for you." Signed with a heart.

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter reads: "Ellis [last name redacted] We pray that you will feel better. 2nd Grade. 7 years." The note is accompanied by illustrations of flower pots, stars, a heart, a smiley face, and a stick figure walking in grass with a sun in the background.

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: "Love is stronger than hate." Signed with a heart.

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.

Floral tag from floral arrangement sent by the Manitoba Islamic Association in Canada. The tag reads: "Words cannot begin to express our sorrow at the senseless attack at a house of worship. Please accept our deepest condolences from the Manitoba Islamic Association." The message is printed on a tag from a local florist.

Post-it note with hand drawn illustration of repeating stars and hearts in green marker.

Handwritten tag which reads: "Shalom. Our prayers are with you, our neighbors. Love, T, M, and F." Staining and tearing 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 members, I am keeping you and all of the others affected by this tragedy. My deepest sympathy, Molly [last name redacted] Holy Angels CCD."

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.

Light blue posterboard with a painting of a tree with eleven leaves. The tree roots are connected to a silver Star of David. The names of the eleven victims of the October 27 attack are written on the leaves. The words: "Stronger Than Hate" appear in the upper center and upper left. Signed lower left. Extensive creasing 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 Synagogue, We are sorry to hear about this tragedy, and we hope peace is to come. We have been thinking and praying for everyone. Sincerely, Holy Angels. -Rylee. 6th grade." Spelling errors corrected for clarity.

Envelope containing letters written by members of the Point Loma Community Presbyterian Church in San Diego, California. The envelope is labeled with a piece of paper reading: "Letters for Tree of Life Synagogue."