I recently came across Betsy de Thierry and a project she has set up called “Trauma Informed Churches”.
The mission of “Trauma Informed Churches” is to equip churches to enable traumatised children to feel safe and be understood in churches. We seek to inform, educate and equip churches as they support families with traumatised children.
On their website you can find resources helping you understand what trauma is and how it impacts children, strategies for supporting children who have been through traumatic experiences, and ideas to help your church be more proactive in being a helpful place for those who have been through trauma.
Betsy de Thierry herself is also available to train those working with children in your churches, and/or provide consultation to your churches on improving your system and creating safe spaces. You can find out about that here.
Hope it helps!