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.

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.

Card from two families in Edgewood, Pa. Front cover shows an illustration of two hands holding a cat's cradle yarn configuration with stars. Message expresses thanks to victims and their families.

Folded card with marker and colored pencil illustrations. Front and back both feature Stars of David encircled by hearts. Inside shows a tree and a cat and is signed "Will".

Diamante poem by Jesse [last name redacted], which was sent with the materials from Emergency Ministry Services, a faith-based training and disaster response NGO in San Juan Capistrano, Ca., affiliated with the Orange County Church on the Rock. A diamante poem is a seven-line unrhymed poem which is shaped like a diamond.

Card from the Friendship Circle of Illinois. The front cover reads: "To: The Jewish Community of Pittsburgh. From: Yisroel [last name redacted], Chicago IL." The inside reads: "I feel so sad for you. My hachlata (resolution) is to give 3 cents instead of 1 or 2 cents. You should have everything you need. And Hashem (God) should give you all that you need." Spelling errors have been corrected for clarity.

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 reads: "To my Brothers and Sisters, In spite of the fear, ignorance and hate, may your resolve grow stronger and your love grow bolder. Bless God and God Bless, Brenda." The church's contact information is included on the back of the envelope.

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter reads: "Dear Ones [heart symbol], We send you love and share your pain and loss. I wish we could kiss you and make it all better. May God bless you and be with you and comfort you in this tragic time. [Heart symbol] Love, Joci and Jim [last name redacted].

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

Handwritten note in pencil on paper. The note, written in bubble letters, reads: "Stronger Than Hate." Illustrated with the adapted Steelers emblem with two diamonds and a Star of David. Creasing and fading due to exposure to the elements at the Wilkins memorial.

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.

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."

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

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 Eddie and Diane in memory of Al Hess. The note is printed on a tag with a beige background from a local florist.

Post-it note with handwritten message in green marker. The note is written in Hebrew. Translated into English, it reads: "There is love with us and it will be victorious. May their memories be a blessing." Signed by the Karmiel-Misgav partnership with Pittsburgh.