According to her religious studies teacher at Immaculate Heart, young Meghan approached her about how to help the local homeless people.
Christine Knudsen, who worked at the school during Markle's time there, shared the note as part of a Channel 5 documentary on the Duchess.
In strong and flowing handwriting, the letter reads: "Dear Michelle, You are so strong and so wonderful - your courage in strength in times of hardships is as admirable as your optimism and friendly nature".
'I am so lucky to have you in my group and to be able to lead you on this adventure.
'This student was very shy she was very unsure of herself she was kind of a bit of a loner. The Duke and Duchess of Sussex sent out lovely thank you cards to everyone who reached out to share congratulations about their marriage. Following her and Harry's engagement announcement last November, it was revealed that Meghan would become a United Kingdom citizen.
Quatre enfants piégés dans la grotte en Thaïlande sauvés
Jour 3 - Mardi 26 juin: le chef de la junte Prayut Chan-O-Cha demande la "mobilisation de tous" pour les retrouver vivants. Or la pluie a recommencé à tomber brièvement samedi soir, et des orages sont attendus à partir de ce dimanche.
However there were some skeptics like one Twitter user who tweeted, "Meghan Markle is a lil phony for that fake British accent coming through", adding, "But if I became British royalty you'd see me day 2 saying pip pip cheerio". It just shows the depth of her heart'. He added, "I can also say she intends to become a United Kingdom citizen and will go through the process of that, which some of you may know takes a number of years".
Meghan Markle seems to be assimilating to life in the United Kingdom very well - so much so that she appears to have picked up an English accent à la Madonna.
'Meghan always took it a step further, not just distributing food but learning people's names, learning their stories. At the time, a spokesperson for the royal family said it was "too early to say" if the Hollywood actress would retain her American citizenship after becoming an British citizen.
'Because that's where I think her compassion comes from connecting with people...