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: "To Tree of Life members and to Jewish everywhere. Adam and Eve let sin in the world, but God gave us another option, Jesus. But through terrorism nothing ever, will drive us apart from being a religious nation. We are one people if they are any differences we should talk them out.

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 marker expressing condolences and affirming belief in the resilience of the Jewish people. Signed with the phrase "Am Yisrael Chai" (The People of Israel Live).

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 is addressed to God, and conveys the writers pain about the October 27 attack. The church's contact information is included on the back of the envelope.

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."

Wooden pedestal painted white with white Star of David and red heart affixed to front. Handwritten in pencil and black marker on the Star of David is the name "Daniel Stein." Collaged onto the heart are white pieces of paper and a translation of Psalm 34:18: "The Lord is close to the broken hearted and saves those who are crushed in spirit." Accompanying image shows all 11 Stars of David in the series.

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter reads: "God be with each of you."

Post-it note with handwritten message in green marker. The message reads: "Hate is not welcome anywhere."

Handmade booklet with blue paper on the cover, pink cover on the back, and three pages of white paper inside. Tied together with red ribbon through three hole punches. Extensive color staining and bleeding throughout. Due to exposure to the elements at the Wilkins memorial, the messages on this card are no longer visible.

Card from a student at West Allegheny Middle School in Imperial, Pa. The front features a hand-colored illustration of a bird with a leaf in its mouth and various geometric and floral motifs. The back contains a handwritten note, as well as the stock signature: "From your friends at West Allegheny Middle School."

Post-it note with handwritten message in blue ink. The message reads: "We love you and support you." Color bleeding due to exposure to the elements at the Wilkins memorial.

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter reads: "Tree of Life, I bleed for you and with you. My soul hurts for you. I stand with you in your faith. I pray for healing. Lola. Point Loma Community Presbyterian Church."

Card with colored pencil illustration. When opened, the card features an illustration of a tree and grass. It inscribed with the following message: "We are sorry for your loss" and the word "love" surrounded by a heart.

Card from a student at West Allegheny Middle School in Imperial, Pa. The front features a hand-colored illustration of a pineapple with floral and geometric motifs. The back contains a handwritten note, as well as a sticker with the stock signature: "From your friends at West Allegheny Middle School."

Post-it note with handwritten message in black marker. The message reads: "Love from Cleveland." A Star of David appears below.

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 support, affirmation, and love. The church's contact information is included on the back of the envelope.

Printed note on behalf of Jerry Rabinowitz. The note contains photographic illustrations of a bicycle, fanny pack, and whistle. It reads, in blue letters: "Our Friend Jerry."

Wooden pedestal painted white with white Star of David and red heart affixed to front. Handwritten in pencil and black marker on the Star of David is the name "Rose Mallinger." Collaged onto the heart are white pieces of paper and a translation of Psalm 34:18: "The Lord is close to the broken hearted and saves those who are crushed in spirit." Accompanying image shows all 11 Stars of David in the series.