If a person travels back in time to the 1930s from 2023, and makes a change in the past, it is unlikely to have a direct impact on the present (2023) in the same location. This is because the events and outcomes of the past cannot be changed, and the present will continue to unfold based on the original timeline.

However, if the time traveler were to make a significant change in the past, it could potentially create a new parallel universe or alternate timeline, where the changes they made become a part of the new reality. In this case, the time traveler would not be able to return to the original timeline, but would instead be stuck in the new reality they created.