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: "Stay strong, remain faithful, know you're loved. - Scott." The church's contact information is included on the back of the envelope.

Business card from Reverend John Shaver of San Dieguito Methodist Church in Encinitas, Ca.

Post-it note with handwritten message in blue marker. The message reads: "Together we are stronger. T and L."

Card from clergy members affiliated with San Dieguito United Methodist Church in Encinitas, California. The front of the card features a multi-colored pattern of tiles with the message: "We Care About You-: We're thinking of you because we so much- and we to show you somehow..." in the upper center. The inside features a stock inscription: "So we're hoping you feel all the love that we're sending to help and support you right now!" as well as additional handwritten note from various clergy members.

Card from a student at West Allegheny Middle School in Imperial, Pa. The front features a hand-colored illustration a bird's feather with floral and geometric motifs. The back contains a handwritten note, as well as the stock signature: "From your friends at West Allegheny Middle School."

Post-it note with handwritten message in black ink. The message reads: "We are all brothers and sisters. Your struggle is our struggle. - A Muslim." Color bleeding due to exposure to the elements at the Wilkins memorial.

Post-it note with handwritten message in black marker. The message reads: "We wish you peace and love from NY. The Brodys."

Card from a student at West Allegheny Middle School in Imperial, Pa. The front features a hand-colored illustration of the words: "You Got This" surrounded by a border with a grapevine pattern. The back contains a handwritten note, as well as the stock signature: "From your friends at West Allegheny Middle School."

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: "May your tree keep growing, members of the Tree of Life Synagogue. From: Connor, Grade 7, Holy Angels CCD." The handwritten message is accompanied by an illustrated tree.

Card from the Friendship Circle of Illinois. The front cover of the card reads: "To the Jewish community of Pittsburgh sheyichyu (may they live)." The card reads: "I feel so bad for you from now and there should be no more bad stuff and moshiach (the Messiah) should come right now!" The acronym "B"SD" (with the help of heaven) appears on the upper right corner of the left fold. There are two illustrations of large smiley faces wearing t-shirts with smiley faces and yarmulkes (skullcaps) with the Hebrew word moshiach (the Messiah).

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

Handwritten card written in pencil, blue and purple crayon, on paper. The note is from a seven year old child [name is illegible]. The note reads: "We won't forget how you spread kindness so we will do the same to the world. Be kind all around." An illustration of a globe appears below. Spelling errors corrected for clarity. Staining and tearing 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.

Picket sign made from rigid foam insulation covered in red, white, blue, and green duct tape and affixed to the top of a wooden dowl. Design features a globe inside a red cross, symbolizing medical care, beneath the words "Heal the World" and "Tikkun Olam."

Floral tag from floral arrangement addressed to David Rosenthal from Gayle and Gloria. The tag reads: "To David, Beautiful person, kind, loving, and so sweet! Love, Gayle and Gloria." The note is handwritten in blue ink on a pink printed tag with a logo in the lower center.

Program from the November 4, 2018 Sunday worship at Blessed Sacrament Cathedral in Greensburg, Pa. The program contains a special prayer, titled "A Prayer for our Neighbors," which offers words of support for all the victims of the October 27 attack. Signed by two parishioners, Ed and Camille [last name redacted] on the center left.

Card from a student at West Allegheny Middle School in Imperial, Pa. The front features a hand-colored illustration of the words: "Be Strong" and other floral and geometric motifs. The back contains a handwritten note, as well as the stock signature: "From your friends at West Allegheny Middle School."

Post-it note with handwritten message in black marker. The message reads: "You are stronger than hate." Tape across the upper corners. Tearing due to exposure to the elements at the Wilkins memorial.

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter is dated November 4, 2018 and reads: "Dear Friends, May I never understand the anger and the hatred that has been loosed on you in Pittsburgh. May the awful misunderstanding that leads to these feelings in too many others be washed from the face of the Earth. I am ashamed for so many on our planet, whether they murder Jews, Coptics, journalists, or perceived blasphemers. And I am angered by the fomenting of such terror by our leaders and by the silence of our politicians.