Post-it note with handwritten message in blue marker. The note is written in Hebrew and English. Translated into English, the message reads: "May God protect you when you leave and when you come. Happy Chanukah!" Signed in English by the Abrin family, followed by a heart.

Post-it note with handwritten message in blue ink. The message reads: "I think about you constantly. Sending love." The Hebrew acronym, "with the help of heaven," appears in the upper right.

Card from the Friendship Circle of Illinois. The front of the card features an illustration of 770 Eastern Parkway in Brooklyn, Ny., the international headquarters of the Chabad-Lubavitch movement. The inside reads: "To the Jewish community of Pittsburgh sheyichyu (may they live), I'm very sad to hear about the tragic passing of the eleven yidden (Jews) who were so brutally murdered al kiddush Hashem (sanctified by God). I hope there will be no more bad things that happen.

Picket sign made from rigid foam insulation covered in red, white, blue, and green duct tape and affixed to the top of a wooden dowl. Design features a globe inside a red cross, symbolizing medical care, beneath the words "Heal the World" and "Tikkun Olam."

Letter written on a torn piece of paper. The letter reads: "Olam Chesed Yibaneh (Your steadfast love is confirmed forever). We will build the world with love for you and for all. [Star of David] Shalom Blessings and Love."

Poster with collage of photographs showing scenes of interfaith support and a quotation of Ecclesiastes 4:9-12.

Post-it note with handwritten message and illustration. The message reads, in Hebrew: "Am Yisrael Chai (The People of Israel Live)." A large heart and smaller Star of David appear in the upper and lower center.

Typed memorial note in honor of Richard Gottfried. The author recalls personal details about Gottfried's identity as a Jew and his commitment to the field of dentistry.

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 blue ink. The note is written in Hebrew. Translated into English, it reads: "Blessed is the true judge." Color bleeding due to exposure to the elements at the Wilkins memorial.

Folded card with the "Stronger Than Hate" graphic printed in black and white on the front cover. The names of the eleven victims of the October 27 attack are written inside, followed by the following promise: "Rest in peace [heart]. I promise to fight for a world where love prevails hate." An additional message appears on the back: "May we fight to ensure this NEVER happens again. Ahava (love)." It concludes with the names of the eleven victims.

Flyer with photograph of people lighting candles above a yellow block with typed text. Text reads: "Memorial Havdallah, Join together with students & community to commemorate the Hebrew Yahrtzeit of Tree of Life victims" with date, time, location, and other details.

Post-it note with handwritten message in black marker. The note is written in Hebrew. Translated into English, it reads: "Be strong, be strong, and may we be strengthened!"

Card from the Friendship Circle of Illinois. On the left side, the card reads: "To the Jewish community of Pittsburgh sheyichyu (may they live), I will take upon myself to stay in shul (synagogue) at least for 3 aliyas (sections Torah reading where a congregant is called up to the reading podium). On the right side, the card contains cartoonish illustrations of a building and several figures. The acronym "B"SD" (with the help of heaven) appears on the upper right.

Card from the Friendship Circle of Illinois. The front cover of the card reads: "To the Jewish community of Pittsburgh sheyichyu (may they live)." The card reads: "I feel so bad for you from now and there should be no more bad stuff and moshiach (the Messiah) should come right now!" The acronym "B"SD" (with the help of heaven) appears on the upper right corner of the left fold. There are two illustrations of large smiley faces wearing t-shirts with smiley faces and yarmulkes (skullcaps) with the Hebrew word moshiach (the Messiah).

Handwritten card in pencil on paper. The front cover features a Star of David in the center and reads in Hebrew: "L'chaim" (to life). The inside reads: "I'm so sorry for your loss. Sending you love, Mimi [last name redacted]." A Menorah appears in the center.

Handwritten note written in black marker on a manilla envelope. Note is addressed to Tree of Life and contains messages in both English and Hebrew.