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.

Post-it note with handwritten message in green marker. The message reads: "Shalom" (Peace). Creasing and tearing due to exposure to the elements at the Wilkins memorial.

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: "Be there for each othe[r]!!! Holy Angels CCD. Love, Brooklyn" and features four illustrated hearts. Spelling errors corrected for clarity.

Black ribbon with gold letters stapled along its length. Message reads, "We will never forget." Ribbon is faded from sun exposure.

Card from a student at West Allegheny Middle School in Imperial, Pa. The front features a hand-colored illustration of the words: "You Got This" surrounded by a border with a grapevine pattern. The back contains a handwritten note, as well as the stock signature: "From your friends at West Allegheny Middle School."

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."

Folded card with marker illustration. Cover reads "Stella." Interior reads, "We at Beth Chai Congregation offer our deepest condolences. Wishing full healing to the wounded and peace to those who loves the victims" with two decorative hearts and a Star of David and the name Oona [last name and other personal information redacted for privacy] Md. Back cover features a collage of balloons, cats, and stickers, and the word "LOVE."

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 contains an illustrated tree surrounded by hearts. The tree is labeled "Tree of Life" on the branches and "Synagogue" below. The card reads: "Tree of Life, I am so sorry for your loss. We will pray and keep you in our thoughts and prayers. We will continue to pray for you at the nights come. Have a great day! Love, Natalie T. Holy Angels CCD, 6th grade."

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 reads: "Just to let you know that you are truly in our thoughts and prayers. You are God's chosen people. He is always with you, and will never leave you. God Bless, Marce." The church's contact information is included on the back of the envelope.

Sympathy card from the staff of Family Medicine Squirrel Hill to the families of the October 27 victims. Pre-printed word "family" is crossed out and replaced with handwritten word "families."

Zine page with bubble letters and information about the emotional value of hugs. Zine page with cartoons illustrating the emotional value of hugs, including a superhero, labeled "Hugs to the Rescue" and a young couple.

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."

Floral tag enclosed in pink envelope from floral arrangement; tape on the lower left front. The tag reads: "You will never be forgotten. Each and every one will live in our memories forever." The note is written in black ink on a printed tag with a floral bouquet in the lower right corner. The reverse is stamped with the contact information for Squirrel Hill Flower Shop.

Rectangular lantern box with wood frame and glass panels. Lantern contains electric candle. Back panel is translucent and features image of a tree. Attached to the handle of the lantern is a bow and a bouquet of white lilies. Front panel features text reading, "Memories. They remind us of people and things we hold dear. They bring smiles, laughter, and sometimes tears. No matter what others may do or say, nothing will ever take these memories away. Memories are more than just a link to the past, sometimes they're all we have that will last."

Post-it note with handwritten message in blue ink. The message reads: "We are here."

Video of "An Act of Valor" event held at the Heinz History Center, featuring October 27 attack survivors Dan Leger and Tim Matson and Rauh Jewish Archives Director Eric Lidji.

Envelope and floral tag addressed to Jerry Rabinowitz. The envelope is addressed "Jerry" and features an illustration of a bow and heart. The floral tag features an illustration of four blue birds with plants on their heads. The tag reads: "Bow ties, small mild coffees, and the sweetest energy. You will be missed, you will be remembered." Signed with a heart.

Handmade card in purple, blue, green, and black ink on white paper. Signed by Talia, Jacob, and Jayden. Illustrated with small hearts throughout. Smudging and staining due to exposure to the elements at the Wilkins memorial.

Card addressed to Daniel Stein, written using personal details from various public sources.