Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter reads: "Dear Ones [heart symbol], We send you love and share your pain and loss. I wish we could kiss you and make it all better. May God bless you and be with you and comfort you in this tragic time. [Heart symbol] Love, Joci and Jim [last name redacted].

Folded card on brown paper. Two circular stamped imprints visible in the center of both the right and left flaps. Due to exposure to the elements at the Wilkins memorial, the message on this card is no longer visible.

Card from a student at West Allegheny Middle School in Imperial, Pa. The front features a hand-colored illustration of the words: "Don't Stop Believing." The back contains a handwritten note, as well as the stock signature: "From your friends at West Allegheny Middle School."

Postcard with a monumental building with a dome, perhaps a mosque, from Azerbaijan on the cover. Tearing due to exposure to the elements at the Wilkins memorial. The message on the back contains words of prayer and the senders' commitment to welcoming all in Squirrel Hill.

Folded card with colored pencil illustration. Cover shows a whimsical landscape with a tree, balloon, bushes, rainbow, flower, and a sun. Inside reads: "Stay strong, we're all standing with you. A little hope can go a long way [heart]. Best wishes; this too shall pass". Back cover reads: "2018."

Folded card with marker illustrations, decorated with stickers. Front features illustration of animal with word bubble "Hi" surrounded by a feature, two balloons, and a kite. Interior features illustration of snowflake and cartoon faces inspired by five emoji stickers and the sender's name "Sadie [last name redacted for privacy]."

Post-it note with handwritten message in black marker. The message reads: "On the street where I lived many years ago. I remember it with calm and safety. May this spot once again, one day, be a place of comfort and peace for my Jewish community and all people."

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 and floral and geometric motifs. The back contains a handwritten note, as well as the stock signature: "From your friends at West Allegheny Middle School."

Letter written with red ink on lined notebook paper. The letter reads: "Stay strong. Gone but neve[r] forgotten. From Graccie [last name redacted]. We miss you." Illustrated with a small heart and Star of David.

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

Hardwritten card in blue pen on white paper, offering condolences following the October 27 attack.

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 Tree of Life Synagogue Members, Our prayers are with you during this difficult time. May you find strength and comfort in your faith and fellowship. Our community prays for yours, with love, The [redacted] Family and Point Loma Comm. Presbyterian Church."

White button with black text and safety pin on back, Design features tree with branches forming a Star of David. Text above design reads, "#pittsburghstrong."

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: "There can't be light without the dark. We are praying for your safety and peace. Holy Angels CCD." Spelling errors corrected for clarity.

Post-it note with handwritten message in black marker. The message reads: "Jersey strong supports #pittsburghstrong. God bless you all!"

Copy of the original charter of Tree of Life Congregation. Four-page typescript document with handwritten annotations. Describes purposes of the congregation and names charter members.