Post-it note with handwritten message in black marker. The message reads: "Love is strongest power exists." A Star of David appears below.

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter reads: "To our esteemed sisters and brothers I offer sorrow in your losses, comfort to enter into your memories and many blessings for your bright future as a synagogue to overcome. With all my love- Russell [last name redacted]."

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 contains an illustration of a man labeled "Jesus" and reads: "I'm sorry for your family. God loves you, all day every day. We all are praying for you. And I'm sorry for your loss. We will remember your loss. We all love you. Sincerely, Nate [last name redacted]."

Post-it note with handwritten message and illustration in blue marker. The note features an illustration of a winged angel with a sad face in the center and a sun in the upper right corner. The words: "Love > hate [encircled with a slash trough the center]" appear below.

Card from a student at West Allegheny Middle School in Imperial, Pa. The front features a hand-colored illustration of a flower with petals, leaves, and geometric patterns. The back contains a handwritten note, featuring a quote from the British historian, Richard Evans, as well as the stock signature: "From your friends at West Allegheny Middle School."

Post-it note with handwritten message in black marker. The note is written in Hebrew and English. Translated into English, the message reads: "The People of Israel Lives. Love from Toronto, Mark [last name redacted]."

Note from a member of The Church at Severn Run in Severn, Maryland. The note reads: "To my brothers and sisters: I can't begin to tell you how sorry I feel that the actions of one person this past week affected the Jewish families in our [?] country... Please know that my prayers and thoughts are with you. I know that God will us. I love you always."

Typed Hebrew letter from a student at Hebrew Academy, a private Jewish day school in Montreal, Quebec. Translated into English, the letter reads: "Dear Rabbi from the Tree of Life Congregation, My name is Hannah [last name redacted]. I am a student at Hebrew Academy of Montreal. I am truly sorry about what happened to your holy synagogue. I hope that this will not happen again. I give [?] all your family and loved ones of your synagogue."

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, "Stronger Together" sticker, as well as the stock signature: "From your friends at West Allegheny Middle School."

Square card with white and yellow text against blue background. Card reads, "Mitzvah4Pittsburgh. Some spread darkness. We spread light. Choose a good deed. Choose a Mitzvah. Add light to the world," followed by four options and a place for respondents to list their name and email address. Some names and email addresses have been redacted for privacy.

White envelope with a handwritten note in blue ink, reading: "To Our Jewish Friends and Neighbors." Staining, color bleeding, and minor tearing due to exposure to the elements at the Wilkins memorial.

Handmade, screen-printed card on yellow paper with green paint. A heart appears in the center. Signed, lower right: "Love, Khira D." The card has been laminated.

Handwritten card in red marker, addressed broadly to tvarious groups impacted by the October 27 attack, including the congregation, the victims and their families, witnesses, police, and first responders. Signed by several families [last names redacted]. The front cover features a reproduction of an eighteenth century engraving of a white heron in the collection of Colonial Williamsburg in Williamsburg, Va.

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter is dated 11/4/18 and reads: "To our people of God. Our prayers of love and support are with you always. The loss of your friends and family is horrible. Our prayers for healing are with you all. God promises in Malachi 4 that 'Goodness will shine like the rising sun and will bring healing.' Take heart. With love, Liliana [last name redacted]."

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter is dated 11/4/18 and reads: "Dear All, Our hearts are crying with you. We feel you[r] pain. We pray you can worship in your house and feel safe. With Halloween just passing, I am reminded of skeletons and the fact they all look the same. We can't tell someone's faith, color, etc. We are all the same- people of God. Point Loma Community Presbyterian Church is with you, supports you, cares for you. Mary [last name redacted] Elementary School Teacher."

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: "You are God's chosen people. He loves you so much and so do we. We pray that love wins in your synagogue every day. God bless, The Church at Severn Run." The church's contact information is included on the back of the envelope.

Natural red rose preserved in plastic box.