Are those white roses they are bestowing on the markers?
"Suited to reverent occasions, the white rose is a fitting way to honor a friend or loved one in recognition of a new beginning or a farewell. Their pure color conveys respect, pays homage to new starts and expresses hope for the future."
https:// www.proflowers.com/blog/history-and-meaning-of-white-roses?ref=organicotherunkwn&prid=pfseootherunkwn