Post-it note with handwritten message in green marker. The message reads: "Live for those we have lost. Be well. Love from Boston MA."

Typed bilingual Hebrew and English letter from a student at Hebrew Academy, a private Jewish day school in Montreal, Quebec. In English the letter reads: "Dear Rabbi, I hope all is well. I'm talking to you from Montreal. I heard what happened last week and I want to say we have been saying Tehillim (Psalms) for you guys in Pittsburg[h]. The whole Jewish community is so sad and I want to say that we are really sorry. I hope all the injured will be okay and heal faster. Sincerely, Joshua [last name redacted]."

Triangle-shaped card from a student at Fountain Valley School in Colorado Springs, Co. The card reads: "Dear members of Tree of Life, I am a Chinese [student] who is now studying in U.S. I am sorry about the situation that happened recently. Personally, I support you, do not be afraid! Peace be with you." Star of David in the upper center, peace sign in the bottom center.

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.

Glass, blue stone and blue handwritten post-it-note. The post-it-note reads: "God help these families and community. 'Hitherto hath the Lord helped us.' (1 Samuel 7:12). Raise an Ebenezer in Pittsburgh. RIP 11 lovely souls." The back reads: "The Ebenezer is the stone of help."

Card addressed to Joyce Fienberg, written using personal details from various public sources.

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].

Paper cutout in the shape of Star of David; composed of two triangles painted in gold and blue paint respectively. The star reads: "Hate is not the answer."

Post-it note with handwritten message written in black marker. The message reads: "We are always with you. You are not alone. Be strong." A smiley face and heart appear below.

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.

Handwritten card in blue and purple marker on paper. The card features a large heart, over a Star David, with the first names of the eleven victims of the October 27 attack. The card reads: "We can't take away the pain, we can only add our love. Love, The Ettingers."

Floral tag enclosed in orange envelope from floral arrangement. The tag reads: "Love from your friends in Sewickley." The message is writtein black ink on a printed tag with a forest landscape; the "o" in "Love" is written as a heart. The reverse is stamped with the contact information fo Squirrel Hill Flower Shop.

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter reads: "Friends, Words cannot express our sorrow the losses you all have endured. That your community of faith, love, peace was assaulted with such hatred and brokenness-our hearts ache for you all. We stand with you in faith and love in the face of such destruction. We stand with you in prayers for comfort and healing in the midst of your pain. We stand with you as a force for love in a hurting world. The [last name redacted] Family, Lauren, Joel, Kieran, Micah."

Green envelope with note handwritten in blue ink with the message: "Let steadfast love become your comfort..." Staining due to exposure to the elements at the Wilkins memorial.

Post-it note with handwritten message in black ink. The message reads: "Z"L."

Handwritten note written in blue ink on lined paper. Addressed to the victims of the October 27 attack and their families. The note is signed by Natasha and reads: "I love you. I'm so sorry this happened to you." Staining and color bleeding due to exposure to the elements at the Wilkins memorial.

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.

Note from a member of The Church at Severn Run in Severn, Maryland. The note reads: "Sending Prayers and Love to you. I pray the peace of God will fill your hearts."

Card and envelope featuring hand-drawn image of dove. Message in card expounds upon the biblical association of the dove as a symbol of peace.

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