The worldwide Anglican communion marks August 12 as the annual feast in honor of the life and work of Florence Nightingale, who died on August 13, 1910.
From the Anglican Book of Common Prayer:
Life-giving God, you alone have power over life and death, over health and sickness: Give power, wisdom, and gentleness to those who follow the lead of Florence Nightingale, that they, bearing with them your presence, may not only heal but bless, and shine as lanterns of hope in the darkest hours of pain and fear; through Jesus Christ, the healer of body and soul, who lives and reigns with you and the Holy Spirit, one God, now and for ever. Amen.
Details here: https://liturgyandmusic.wordpress.com/2010/08/12/august-12-florence-nightingale-nurse-social-reformer-1910/