Hebrew mourning prayer, "Kel Male Rachamim" (God full of compassion) translated into English. The names of the eleven victims of the October 27 attack have been inserted here. Tears and creasing due to exposure to the elements at the Wilkins memorial.

Hallmark card from a member of St. Peter's Episcopal Church in Londonderry, New Hampshire. The front cover features a large rose and reads: "Give thanks to the Lord, for he is good. His love endures forever. Psalm 136:1 (NIV)." The inside reads: "Blessings and prayers to aid you in healing and the love of God to embrace you and ease the pain. Sally [last name redacted]."

Folded card with marker illustrations. Cover reads "Best Wishes." Interior features illustration of smiling sun over water and words "Best Wishes" and name "Harper [last name redacted for privacy]."

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.

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter reads: "Beloved of the Lord- We cry with you in your sorrow, loss, and anger, And we pray with you for healing, forgiveness, hope and peace- Because of the One God who gave life to us all. In the name of His Son, Yeshua, Your sister, Kate [last name redacted]."

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter reads: "Please feel our love, our support and our commitment to peace in this world. Our church community holds you and your congregation in our hearts. Susan [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 reads: "Julianna N. I am praying for everyone who died and I am very sorry for everyone who lost their loved ones. But I am happy that you are all in heaven. Many pray[er]s. Holy Angels CCD." Spelling errors corrected for clarity.

Post-it note with handwritten message in black ink. The message reads: "God's love for the Jews, his people is stronger than the wicked mess of the evil. May the Jews be blessed forever. H. [last name redacted]." Staining and color bleeding due to exposure to the elements at the Wilkins memorial.

Post-it note with handwritten message in blue ink. The message reads: "You are not alone. We are all with you."

Handwritten note written in black ink on blue paper. The note, which contains dozens of small, illustrated hearts around a large heart in the upper center, reads: "Lots of Love."

Folded card with colored pencil illustration. Cover reads: "Remember that we are here with you" with a heart below. Inside shows an illustration of stick figure surrounded by six hearts. Back reads: "It's fine we're here with you" and features an upright hand.

Hand written and illustrated poem dedicated to the eleven leaves which feel from the Tree of Life, a euphemism for the eleven victims of the October 27 attack. Eleven illustrations of different kinds of leaves appear around the poem.

Diamante poem by which was sent with the materials from Emergency Ministry Services, a faith-based training and disaster response NGO in San Juan Capistrano, Ca., affiliated with the Orange County Church on the Rock. A diamante poem is a seven-line unrhymed poem which is shaped like a diamond. The words of this poem washed away due to rainwater.

Rectangular card from a student at Fountain Valley School in Colorado Springs, Co. Front reads: "Tree of Life" and features a Star of David and a peace sign. Back reads: "Dear members of Tree of Life: I'm a Chinese high school student who study in U.S. After I heard the news that what happened in Tree of Life at this weekend. I'm extremely shocked and I still cannot believe that. We really against the discrimination between the religions and I believe that hate is no allowed between religions.

Handwritten card written in pencil on paper. The card reads: "Dear Family, Hello my name is Elisha D. I am from Netivot, we stand together with you because a loss for you is a loss for us. May you only see simchas."

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter reads: "Ellis [last name redacted] We pray that you will feel better. 2nd Grade. 7 years." The note is accompanied by illustrations of flower pots, stars, a heart, a smiley face, and a stick figure walking in grass with a sun in the background.

Card made by a student from the George Washington University Hillel. Front cover reads: "We Are One" with an illustrated heart below. The inside reads: "The GW community sends prayers and holds your community in our hearts. We will find a way to come out stronger."

Typed memorial note in honor of Joyce Fienberg. The author recalls personal details about Joyce's research career at the University of Pittsburgh and her caring personality.

Envelope containing handwritten notes from the first grade religious school class at Congregation Beth Torah in Richardson, Tx. Handwritten text on envelope reads, "Hand delivered with our deepest love and sympathy. From the first grad religious school class. Congregation Beth Torah, Richardson, Texas. May their memories be for a blessing."