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.

Handwritten card from a student at Goddard Middle School in Littleton, Co. The front cover features the following quote: "No act of kindness no matter how small is ever wasted." An illustration of a rainbow appears below. The inside reads: "Dear Tree of Life Congregation, I am sorry for your loss. I am writing to you from Colorado. I would like you to know people far away care for you. I may not believe in Judaism but I believe your heart is in the right place. Sincerely, Uyen [last name redacted], Littleton, Colorado."

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 reads: "I am so sorry for what happened to the people whom you love and know." An illustrated crying, sad face appears below.

Post-it note with handwritten message in blue marker. The message reads: "Thank you for being strong."

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.

Folded card on light blue paper. Extensive creasing and blue and yellow staining. Due to exposure to the elements at the Wilkins memorial, the message on this card is no longer visible.

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 reads: "Sorry for your loss. We will remember you. P.S. We will pray for you. Aden."

Post-it note with handwritten message in black marker. The message reads: "Sending love from Detroit, MI." Tape on the upper edge.

Card made by a student from the George Washington University Hillel. The card features a Star of David and reads: "To the Pittsburgh community, We are a city built on steel and kindness and held up by a thriving Jewish community. I miss my home, my city so much right now, but I know that you are strong. I send all my love."

Oral history of Rev. Liddy Barlow, recorded as part of the Meanings of October 27th Oral History Project.

Typed letter from Amy Jonas of the Hebrew Institute of Pittsburgh to Ruth Edenstein, President of Congregation Dor Hadash, thanking Dor Hadash for sponsoring the construction of a ramp on the Hebrew Institute building.

Note card which reads: "GOD BLESS YOU [heart]."

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter reads: "We feel your loss! We feel your pain! We pray for you and with you!"

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: "Dear Tree of Life Members, We are all praying for you and your losses. Please join in our prayers for the police officers injured. From Holy Angels CCD."

Pittsburgh Penguins hockey jersey with team logo on front and "Crosby 87" on back. Detail shows manufacturer's patch featuring the logo of Tree of Life-Or L'Simcha Congregation and the logo of the Pittsburgh Penguins above the words "Stronger Than Hate."

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter reads: "Dear friends, My heart and prayers are with all of you as you process your loss and the events in these past few days. May God's presence and comfort be showered on every one of you. I cannot even begin to imagine... I pray for God's grace and blessings. With love, Cheryl [last name redacted]."

Black and white sticker with the word "LOVE" in large capital letters.