Final answer:
Percy's question about people making an endowment could generally refer to wealthy individuals, charitable organizations, or any group that could potentially provide a significant financial gift for a charitable cause.
Step-by-step explanation:
When Percy asks, "But would people like this make us an endowment?" he is likely referring to a group of people who have the means and the willingness to provide a substantial gift or donation, typically for a charitable cause or to support an institution. In the context provided, there isn't enough information to determine the exact group Percy is referring to. However, the term "endowment" is commonly associated with large, financial gifts, which can be provided by wealthy individuals, charitable organizations, or sometimes academic scholars or supportive neighbors if they have the necessary resources.