Card from a student at West Allegheny Middle School in Imperial, Pa. The front features a hand-colored illustration of a flower. 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 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."

Four-page program with readings and song lyrics. Cover features photograph of a grid of memorial candles and lists names of 14 officiants.

Color photograph showing six children holding a banner that reads, "New Light Congregation." People in the background are wearing matching shirts from the congregation.

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.

Summary: Tribune Review High School Sports Network report on the cancellation of the Pittsburgh City League football championship following the attack.

Black and white photograph showing large group of people in a banquet hall. Label taped onto photograph reads, "1955."

Handwritten card in green, orange, and red crayon on paper. The card reads, in large bubble letters: "Thinking of you" and illustrated with concentric hearts in red, orange, and green. Signed: "From Meira, West Orange, NJ." Tearing and creasing due to exposure to the elements at the Wilkins memorial.

Grey and black sticker with the words: "You are beautiful" on the front. The back contains a hashtag and web link to the "You Are Beautiful" company website.

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: "I'm praying for everyone that lost a love one. I will pray for everyone that died. Sincerely, Hannah [last name redacted]." Spelling errors corrected for clarity. Color bleeding due to water exposure at the memorial site.

Typed condolence note with the names of the eleven victims of the October 27 attack listed in alphabetical order.

Card addressed to Rose Mallinger, written using personal details from various public sources.

Miniature New York State flag. Wrapped around stem of flag is a slip of laminated yellow paper reading, "In Memory of our Brother JERRY RABINOWITZ z''l -- To his family and community we pray Tanuchamo min hashamayim. May God in Heaven comfort you. The Principals, Teachers, Parents, Alumni, and Students of Magen David Yeshivah. Brooklyn, NY." Part of a series of 11 flags, each dedicated to one of the victims. Additional photograph shows the entire set of 11.

Post-it note with handwritten message in red marker. The message reads: "Hate is not welcome here." Tape on the upper edge.

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter is dated Nov. 4 and reads: "Dear Tree of Life Members, We send our love and sympathy to you. We stand by you and all your global family for life. You are our brothers and sisters cherished our heritage through your and our future promises with you. With prayers and love, Rev. Dr. Larry [last name redacted]."

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: "Dear Tree of Life Members, We are all praying for you and your losses. Please join in our prayers for the police officers injured. From Holy Angels CCD."

Handwritten note written in yellow marker on a printed paper with a framed picture with leaves around the edges. The note is written inside the leaf frame and reads: "Eleven beautiful leaves for eleven beautiful sweet souls ripped away... Six strong trees for the six injured but here to stay. Hated can't weaken a city of steel."

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The front cover reads: "Letters." The inside reads: "To Tree of Life family: Who can explain such an event? And how do we move forward? My prayer is that your faith in your God will see you through this grieving time and heal you all with His Grace. Steve [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 has faded due to water damage; the remaining text reads: "Hello we would like to send some thoughts, love, and positivity during this time because you matter." The church's contact information is included on the back of the envelope.