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: "We love you! God is with you always!" 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 contains messages of support and prayer. The church's contact information is included on the back of the envelope.

Hallmark card from a member of St. Peter's Episcopal Church in Londonderry, New Hampshire. The inside reads: "Please know that you are in our thoughts and prayers. St. Peter's Episcopal Church Londonderry, NH."

Folded card with repeating diagonal plaid pattern in green and dark blue marker on yellow paper. The inside contains the following words in a cloud-shaped bubble with emanating light rays: "I am sorry for what happened. It will be ok. [Heart]." A Star of David surrounded by tiny dots appears in the upper left corner.

Folded card with colored pencil illustration. Cover shows a whimsical landscape with a flower, smiling sun, and a fruit tree. Inside features a heart and purple circle surrounded by seven floating items, perhaps leaves or butterflies. Back shows a drooping plant with heart shaped leaves.

Card from the Friendship Circle of Illinois. Front cover reads: "From: Menachem [last name redacted] To: Jewish Community of Pittsburgh." Inside reads: "To the Jewish community of Pittsburgh sheyichyu (may they live). Passed away: 11, Injured: 2 Yidden (Jews) + 2 policemen=4. Illustrated below there is a wagon holding the shooter, who says in a word bubble: "I just wanted to kill Jews." A man with a hat, perhaps a police officer, is seated on the right.

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

Handwritten card from a student at Goddard Middle School in Littleton, Co. The front cover reads: "I am sorry" and features a large heart below. It is signed: "By D'mitri." The inside reads: "Dear survivors of the synagogue shooting, I AM sorry FOR your LOSS. This note is from D'mitri [last name redacted]. I live in Colorado."

Note from a member of The Church at Severn Run in Severn, Maryland. The note reads: "Dear Blessed Children of God, My heart is broken over the recent news of tragedy and the horror and fear that it caused. I pray for peace. I pray for courage and strength to continue to serve our God of love. I pray for healing and again, God's peace. With love, Jackie [last name redacted]."

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

Rectangular card from a student at Fountain Valley School in Colorado Springs, Co. Front reads: "Dear members of Tree of Life, I'm from Japan and I am writing this letter because on extremely sad news about Jewish people came up yesterday. I'm feeling awfully sorry for Jewish people. I've been learning about 3 monotheistic re[li]gions from last month, so it also made me feel that I have connection with every single Jewish person.

Card from a student at West Allegheny Middle School in Imperial, Pa. The front features a hand-colored illustration of the words: "Keep going" and a pattern with flowers, leaves, arrows, and shooting stars. The back contains a handwritten note, as well as the stock signature: "From your friends at West Allegheny Middle School."

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

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 message of condolence and a wish for peace, articulated through citations to the Book of Psalms. The church's contact information is included on the back of the envelope.

Card with polka dots on the cover. The card is addressed "Neighbors" and affirms the three senders' thoughts and prayers for the "victims, family members, and friends at Tree of Life."

Bilingual, laminated prayer card with the text of the Jewish "Traveler's Prayer" in English and Hebrew. This "Traveler's Prayer" card was purchased an Israeli Judaica website.

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.