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: "God is love, and love never fails." The church's contact information is included on the back of the envelope.

Floral tag from floral arrangement, which reads: "May the lord Be with you!" The message is written in black ink on a printed tag with white and purple flecked flowers.

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: "Dear Tree of Life members, I'm sorry for all of the uncalled for events and all of the inconvenience of them. We hope you all feel better and don't worry but keep them in mind. Sincerely, Michaela [last name redacted] from Holy Angels CCD."

Letter from Rev. Drew Shofner, the lead pastor at The Church at Severn Run in Severn, Maryland. Addressed: "TREE OF LIFE."

Black cotton t-shirt with the words Stronger Than Hate in white to the left of a modified Pittsburgh Steelers logo with a Star of David replacing the yellow hypocycloid.

Single page flyer. Backdrop features images of paper dolls holding hands and the image of a lit candle. Text lists date, time, and location of event, biography of speaker, and sponsoring organizations.

Card addressed to Irving Younger. Cover features a reproduction of a painting by Frank Crosby, a resident of the Emmaus Community of Pittsburgh. The inside contains messages of love and support written by other members of the Emmaus Community.

Glass vase with four blue and white star-shaped balloons and a miniature American flag. Handwritten in black marker on white balloon is "Love One Another Right Now" with two hearts. Attached to front of vase is typed note that reads, "For our beloved neighbors that worshipped at the Tree of Life Synagogue, with great sadness, but also with a recommitment to a world of justice, reason, and love - [redacted], Chatham University;-[redacted], Washington DC - [redacted], Fouzhou China- [redacted], Sao Paulo Brazil."

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.

Oral history of Zach Banner, recorded as part of the Meanings of October 27th Oral History Project.

Post-it note with handwritten message in black marker. The message reads: "We are stronger together!!" Signed: "Arielle."

Condolence card from the Dance Ministry at the First Baptist Church, Berkley in Norfolk, Va. Yellow cover with pink roses and a stock poem about a rose. Left flap features stock message about comfort signed "from your friends at" First Baptist Church Berkley, indicated by the return address label. The right flap continues additional stock messaging and is signed "With love, blessings, comfort, and Peace! F.B.C.B. Dance Ministry."

Card from the Friendship Circle of Illinois. The front of the card features an illustration of 770 Eastern Parkway in Brooklyn, Ny., the international headquarters of the Chabad-Lubavitch movement. The inside reads: "To the Jewish community of Pittsburgh sheyichyu (may they live), I'm very sad to hear about the tragic passing of the eleven yidden (Jews) who were so brutally murdered al kiddush Hashem (sanctified by God). I hope there will be no more bad things that happen.

Card made by a student from the George Washington University Hillel. Features a bilingual Hebrew and English message and reads: "Am Yisroel Chai (The People of Israel live) forever and ever. NEVER FORGET IT!!!"

Rectangle-shaped card from a student at Fountain Valley School in Colorado Springs, Co. Card reads: "Dear members of Tree of Life synagogue. I am an international student from China. I am sorry for your loss and will stand with you. May peace with you and stay stong. Shalom. Warmly, Xiao Chao [last name redacted]." Small Star of David in lower right.

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 "Bernice Simon." 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.

Cut out 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 floral and geometric motifs. The back contains a handwritten note.

Collage with a hand drawn tree with brown and black ink in the center; leaves made of multicolored tissue paper.

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: "Just because life is hard now...does not mean it will be forever challenging. Love in stronger than HATE. You just have to strong. We are praying. -Tree of Life members and all Jewish people. - From: Reena Weber and Holy Angels CCD, 8th grade." Illustrated with two small hearts.