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

Floral tag addressed to Joyce Fienberg. The tag features a white rose on the left and the stock message: "With Deepest Sympathy" in a band on the upper center.

Post-it note with handwritten message in blue marker. The message reads: "Love and solidarity from the Bay Area."

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.

Miniature New York State flag. Wrapped around stem of flag is a slip of laminated yellow paper reading, "In Memory of our Brother DAVID ROSENTHAL z''l -- To his family and community we pray Tanuchamo min hashamayim. May God in Heaven comfort you. The Principals, Teachers, Parents, Alumni, and Students of Magen David Yeshivah. Brooklyn, NY." Part of a series of 11 flags, each dedicated to one of the victims. Additional photograph shows the entire set of 11.

Notecard with message written in ink. The note reads: "Dear Hate- There is NO ROOM for you in our city! Love and FAITH will overcome!" Signed with four hearts in the lower right.

Handwritten card in red marker, addressed broadly to tvarious groups impacted by the October 27 attack, including the congregation, the victims and their families, witnesses, police, and first responders. Signed by several families [last names redacted]. The front cover features a reproduction of an eighteenth century engraving of a white heron in the collection of Colonial Williamsburg in Williamsburg, Va.

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter reads: "To Members of Tree of Life Synagogue, We are family and feel your grief. Prayers for our world to know and respect our roots together. Love and hope to you as you recover and move on with joy. Sincerely, Christi [last name redacted]."

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.

Card with photograph of ribbons laid out in a rainbow pattern. The inside reads: "God bless. Sandy and Cheri."

Card with mosaic pattern evoking a flame on the front cover. The inside contains a note of sympathy from the board and staff of Mazon, as well information about the organization

Folded card with crayon illustration. Cover features heart surrounded by circles and name Max. Interior reads "Things do get better. I am sorry for the 11 killed and their families. But the world's not over. How will you bounce back from the tragedy. You guys are really strong sticking through the tragedy." Second note reads. "We are with you! Michele."

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter reads: "We wish you Peace and Love. May you feel that most people in the world love you and feel your sorrow. Love, Betty and Jack [last name redacted] Point Loma Community Presbyterian Church."

Card with illustration of two dragonflies on the cover. Message affirms the power of love to triumph over hate. The information on the back indicates that this card was purchased in support of UNICEF, the United Nations International Children's Emergency Fund.

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter reads: "Dear Tree of Life Synagogue, Brothers and sisters, we love you and are praying for all of you in this difficult time. Love, The Pasha Family."

Card with photograph of flower. Handwritten text on front of envelope reads, "To: Tree of Life in sympathy and solidarity" and back of enveloped reads, "Won't you be my neighbor? Mr. Rogers." Handwritten interior of card expresses love for the Pittsburgh Jewish community and evokes Mr. Roger's: "We are called upon to remember the spirit of Mr. Rogers and love each and every one of our neighbors who make our community so wonderful."

Printed tag with a photograph of Daniel Stein. The tag reads: "In Memory of Daniel Stein." Creasing and staining due to exposure to the elements at the Wilkins memorial.