Card from a student at West Allegheny Middle School in Imperial, Pa. The front features a hand-colored illustration of a bird with a leaf in its mouth 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."

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

Single page, folded. Cover features illustration of sanctuary addition of New Light Congregation synagogue. Interior includes text of invitation in cursive font.

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.

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.

Summary: Pittsburgh Post-Gazette breaking news report on the October 27 attack, updated throughout the day as events unfolded. Lists charges filed against alleged perpetrator. Includes map of the Tree of Life building, pinpointing locations of key moments of the attack. Also includes accounts from people who witnessed aspects of the attack.

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."

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.

Note from a member of The Church at Severn Run in Severn, Maryland. The note reads: "To my brothers and sisters: I can't begin to tell you how sorry I feel that the actions of one person this past week affected the Jewish families in our [?] country... Please know that my prayers and thoughts are with you. I know that God will us. I love you always."

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.

Note dated October 27, 2019 reading: "You can count on our prayers. Together we are stronger than hate. The Roman family." Illustration of a young child angel with wings bottom center.

Hallmark card from a member of St. Peter's Episcopal Church in Londonderry, New Hampshire. The envelope features an illustrated heart. The front cover reads: "Faith is the friend that comes along when things just seem to go all wrong." The inside reads: "To the Tree of Life, My thoughts and prayers are with yours. Nancy [last name redacted]."

Card with pre-printed message reading, "'Sorry is not a big enough word to express the concern we feel for you." Interior includes handwritten signatures and messages from various members of the staff."

Handwritten tag in silver ink on heavy cardstock lined on an orange backing. A small snail, labeled: "Certified and Official Snail Mail" is embossed on the upper center. The note reads: "With Love, Mark [last name redacted] Beaver Dam, WI." Dirt stains due to exposure to elements at the Wilkins memorial.

Floral tag from floral arrangement addressed to Rabbi Hazzan Myers at Tree of Life synagogue. The message is printed on flower tag from a local florist. Significant tears 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: "Even in dark times there's still hope! I'm praying for you ALL! From Holy Angels CCD." Spelling errors corrected for clarity.

Folded card on white paper. Blue, purple, and yellow stains in the center and upper right and left. Mild dirt staining throughout. Due to exposure to the elements at the Wilkins memorial, the message on this card is no longer visible.

Post-it note with handwritten message in red marker. The message reads: "Stronger than hate. Never forget the day."

Multicolored printed card with message that affirms the value of kindness.