Post-it note with handwritten message in blue ink. The message reads: "We are here."

Card addressed to Cecil Rosenthal. 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.

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, prayer, and solidarity. 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 is addressed to God, and conveys the writers pain about the October 27 attack. The church's contact information is included on the back of the envelope.

Post-it note with handwritten message in green marker. The message reads: "Doubt is not the opposite of faith, fear is [underlined] let us not fear."

Card from a student at West Allegheny Middle School in Imperial, Pa. The front features a hand-colored illustration of pineapple 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 abstract illustration in black marker.

Wreath made of branches with leaves, wire, and small stones. Stones attached with black zip ties.

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 is dated 10/28/18 and reads: "know that God see you all and may the peace that surpasses all understanding fill your hearts. You all will be in my prayers! -Amen." The church's contact information is included on the back of the envelope.

Oral history of Leslie Aizenman, recorded as part of the Meanings of October 27th Oral History Project.

Typed letter from a student at Hebrew Academy, a private Jewish day school in Montreal, Quebec. The letter reads: "Dear Rabbi, My name is Joelle. I'm 10 years old. I live in Montreal. I go to Hebrew Academy, a private school. I'm sorry to hear that there was a shooting. I feel so bad. It doesn't matter what religion you are, you have to respect other[s] just the same way you have to respect Hashem (God). We should always know that we are stronger than hate. So bad things can't happen we have to faith and emunah (trust) in Hashem. I feel so bad. From: Joelle. P.S.

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter reads: "Dear families in Christ, My thoughts and prayers are with you all. Your broken hearts for losing your loved ones are so suddenly happened and only Christ can heal- may His Holy love and joy wrapped you and comfort you. May all sweet, great, and wonderful memories stay close in your [heart symbol], your minds, and souls. Your love to your lost one couldn't be taken away- stay strong and keep faith. God bless you all. Euny [last name redacted]."

Large envelope with a message written in pencil. Two flower outlines, drawn in purple, surround the text. Blank back.

Handwritten card from a student at Goddard Middle School in Littleton, Co. The front and back cover features the following quote: "Everyday may not be a good day BUT." The quote continues on the inside: "There is good in Every DAY!!" The card reads: "Dear Rabbi Jeffr[e]y Myers, I am very sorry to hear about the shooting that has occurred. My best wishes for you all. -7th grade student from Littleton, Colorado." The message is accompanied by a large Star of David in the upper center.

Note from a member of The Church at Severn Run in Severn, Maryland. The note reads: "Dear Blessed Children of God, I am praying for you in these extremely difficult days. Know that you are being held in prayer. You are loved. Praying for Peace, Comfort, and a Hedge of Protection around you and your community. With love, A follower of Christ."

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.

Folded card with crayon illustration. Cover features brown abstract shape. Interior reads, "From Luke, I feel sorry for you. The bad guy is in jail. I still feel sorry. To synagogue people." Back features illustration of tree under a peace sign.

Printed note on behalf of Jerry Rabinowitz. The note contains photographic illustrations of a bicycle, fanny pack, and whistle. It reads, in blue letters: "Our Friend Jerry."

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'm sorry for all of the uncalled for events and all of the inconvenience of them. We hope you all feel better and don't worry but keep them in mind. Sincerely, Michaela [last name redacted] from Holy Angels CCD."