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."

Glass vase containing bouquet of synthetic orange, white, and red flowers. Also includes synthetic roses in cellophane. Note with typed text taped to vase. Note reads, "For our dear friend Joyce Fienberg, from [redacted], Green Templeton College, Oxford University, and [redacted]."

Card made by a student from the George Washington University Hillel. Features a bilingual Hebrew and English message and reads: "Am Yisroel Chai (The People of Israel live) forever and ever. NEVER FORGET IT!!!"

Program from November 4, 2018 Sunday worship at Lincoln Place Presbyterian Church in Pittsburgh. The eleven victims of the October 27 attack were memorialized in the church's prayers and remembrances for those who had passed in the past year.

Floral tag from floral arrangement, which reads: "Friends of fallen victims." Message written in black marker on printed tag with a red rose on the left.

Post-it note with handwritten message in black marker. The message reads: "What happened here will not be forgotten." Signed with a Star of David.

Post-it note with handwritten message in black marker. The message reads: "May god be with you. Cierra [last name redacted]. Pittsburgh, PA."

Pink card with a large heart with the words "Rose-Ferree Street misses you" inside.

Floral tag from floral arrangement sent by the Manitoba Islamic Association in Canada. The tag reads: "Words cannot begin to express our sorrow at the senseless attack at a house of worship. Please accept our deepest condolences from the Manitoba Islamic Association." The message is printed on a tag from a local florist.

Post-it note with hand drawn illustration of repeating stars and hearts in green marker.

Post-it note with handwritten message in blue marker. The message reads: "When there is dark be the one who turns on the light."

Post-it note with handwritten message in blue marker. The message reads: "Love not hate." Tape affixed on the bottom edge. Tearing and creasing 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: "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."

Post-it note with handwritten message in blue marker. The message reads: "May you flourish in the future."

Handwritten note on the back of a piece of paper with the letterhead of KYW News Radio. The note is very difficult to read due to extensive creasing and fading caused by exposure to the elements at the Wilkins memorial.

Handmade, screen-printed card on red paper with blue paint. A heart appears in the center. Signed, lower right: "Love, Brian S." The card has been laminated. A piece of clear tape appears on the back.

Oral history of Rabbi Aaron Bisno, recorded as part of the Meanings of October 27th Oral History Project.

Card made by a student from the George Washington University Hillel. The front cover reads: "Hugs" with asterisks on either side. The inside (from right to left) reads: "Sending you messages of hope, love, and comfort from Washington D.C. Love, Alex. May God be with you and your families."

Cover of bencher (grace after meals booklet) from the bar mitzvah of Nate Itskowitz. Features illustration of a black and yellow sports jersey with the name Itskowitz, a Steelers logo modified to read "Nate" and the date "10-27-18," and Hebrew text listing the event and date.