Conversation so far:
who went on a yatra from ahmadabad to dandi and why
Mahatma Gandhi embarked a historic Salt March from Sabarmati Ashram in Gujarat's Ahmedabad to the village of Dandi to protest against the steep tax the British levied on salt.
how many people did the salt march start with
79 Marchers accompanied Gandhi from the beginning of the Salt March
did all 79 marchers finish the salt march with gandhi
The 79 marchers were with Gandhi from the beginning of the Dandi March until the end.
what is the memorial honoring the dandi marchers called
The National Salt Satyagraha Memorial or Dandi Memorial is a memorial in Dandi, Gujarat, India, that honors the activists and participants of the Salt Satyagraha

Question: who was the youngest marcher
Self-contained rewrite: who was the youngest dandi marcher that accompanied gandhi