Mr. Rankin. Now, how many men, of those 10 men, were in the Presidential motorcade on the day of the assassination?

Mr. Rowley. Four—four men were in the followup car.

The Chairman. Who were they?

Mr. Rankin. Do you know their names?

Mr. Rowley. Yes; Landis, Hill, Ready, and Bennett.

Mr. Rankin. Did you make any investigation to determine whether or not their violation of the Secret Service regulations had anything to do with the assassination of the President?

Mr. Rowley. Yes. They performed their duties from the time they departed in the followup car from Love Field until the point of the tragedy in a most satisfactory manner. There was nothing deficient in their actions or their alertness. They went through the heaviest part of downtown Dallas, through the crowds, and performed in an exemplary manner.

Mr. Rankin. How do you know that?

Mr. Rowley. From the reports that I got from their superiors.

Mr. Rankin. In the work that you did with the White House detail before you became Chief of the Secret Service, did you know the various responsibilities of the members of the White House detail?