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 contains an illustrated tree, labeled "Tree of Life" and reads: "Tree of Life Members, I am really sorry for your loss. I'm praying for you everyday. May all people that have passed away rest in heaven peacefully, and all that are injured good luck to recovery. May all the souls' hearts that have been broken recover and rejoy: Much Love From, Elaina, Holy Angels Church, 6th Grade."

Card with colored pencil illustration. Cover features an illustration of a leafy tree with pink asterisk-shaped stars, labeled: "The place where new life can grow." Inside reads: "Baruch dayan ha'emet" in English and Hebrew, and "I am sorry for your friends and families loss. I know what it feels like. So I am sending all the way from Texas this blessing." The back is signed: "Miriam." Spelling errors have been corrected in this transcription.

Card from the Friendship Circle of Illinois. The front of the card features an illustration of 770 Eastern Parkway in Brooklyn, Ny., the international headquarters of the Chabad-Lubavitch movement. The inside reads: "To the Jewish community of Pittsburgh sheyichyu (may they live), I'm very sad to hear about the tragic passing of the eleven yidden (Jews) who were so brutally murdered al kiddush Hashem (sanctified by God). I hope there will be no more bad things that happen.

White envelope with a handwritten note in blue ink, reading: "To Our Jewish Friends and Neighbors." Staining, color bleeding, and minor 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 Nov. 4, 2018 and reads: "Dear Sisters and Brothers, Please hold fast to the promise of God's power and presence in all things. While we have choices He has the final word on how our circumstances, losses, and gains will serve His kingdom. You are loved, prayed for, and supported by many in this trying and confusing time, and always. Please reach out the community of believers for any need. Thank you for your continued faith and courage, which inspires generations.

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter reads: "May God comfort you today and in the days ahead. I will keep you all in thought and prayer. [?] from Pt Loma P.C."

Post-it note with handwritten message in green marker. The message reads: "Never again! We love you." Tape on the upper edge. Tearing and creasing due to exposure to the elements at the Wilkins memorial.

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: "Our thoughts and prayers are with you all. God is with you always. God Bless." 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 is enclosed in an envelope with church letterhead, reading: "The Church at Severn Run: Love Well, Live Jesus, Believe Big!" The note inside affirms God's greatness and his love. The church's contact information is included on the back of the envelope.

Card addressed to Joyce Fienberg. 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.

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."

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."

Handwritten card in pink marker on paper. The card contains illustrations of a flower and two hearts and reads: "Simon. May their memory be a blessing." Folded on the sides.

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter reads: "To my Jewish brothers and sisters: I just want you to know that my prayers and love are with you. I cannot imagine your thoughts or emotions, but I am angry and saddened. No matter what I will always be with you. Joel D. San Diego 11/2/18."

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter reads: "Dear Fellow Believer in God, May God bless you and your family."

Post-it note with handwritten message in blue ink. The message reads: "Standing with you." Tape marks and color bleeding 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 reads: "We wish you Peace and Love. May you feel that most people in the world love you and feel your sorrow. Love, Betty and Jack [last name redacted] Point Loma Community Presbyterian Church."

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter reads: "Dear members and brothers and sisters- May you each know that our prayers are with you. May you find peace through God's love. Sam W. May our God be gracious to you in your time of difficulty beyond difficulty. Our [?] God is yours. David [last name redacted]."

Handwritten note in marker on paper. The note contains a quote from Job 14:7, reading: "At least there is HOPE FOR A TREE if it is cut down, it will sprout again, [its] new shoots will not fail."