Explanation:

1. Lord Cornwallis:Not associated with Ryotwari Settlement. He is known for introducing the Permanent Settlement or Zamindari System in Bengal and Bihar.
2. Alexander Reed: Associated with the early experiments of the Ryotwari System before Thomas Munro's involvement.
3. Thomas Munro: Associated with Ryotwari Settlement. Captain Thomas Munro played a pivotal role in implementing the Ryotwari System in the Madras Presidency.

2 out of the 3 mentioned (Alexander Reed and Thomas Munro) are associated with the Ryotwari Settlement.

Tidbits :  The Ryotwari Settlement was a revenue collection system introduced by the British in parts of India. Under this system, the government settled revenue directly with the ryot (cultivator). There were no intermediaries like zamindars in this system, unlike the Zamindari System. Alexander Reed began early experiments with this type of settlement, and subsequently, Thomas Munro played a significant role in its implementation and expansion, particularly in the Madras Presidency.