54 NATIONAL ORIGINS PROVISION OF IMMIGRATION LAW 
Mr. Trevor. Because I think you may be confusing his first ref- 
erence. He states the Century of Population Growth—the schedules 
that were used there—have been completely revised by the Council 
of Learned Societies and the quota board. 
The Cramrvan (reading) : 
The principal sources of data available for determining national origin are 
as follows * 
os 
F3 
ae 
oe 
(2) A classification by racial stocks of the white population enumerated 
at the census of 1790 as publ shed by the Bureau of the Census in the voluine 
entitled “A Century of Population Growth.” supplemented and modified by 
recent studies which are referred to in the statement which follows. 
The only query I had was whether this is the book to which you 
have been referring in your testimony. 
Mr. Trevor. Yes, sir; that is the book. But I want to call par- 
ticular attention to the fact that that analyses has been completely 
restudied and radically changed. 
An attempt has been made to discredit the census of 1790 on the 
basis of the revolutionary muster rolls. I would prefer not to go 
into that in great detail, because there is another witness who has 
made a detailed study of that question. 
The CramrMaN. Very well. 
Mr. Trevor. And he, I think. can demonstrate to you satisfac- 
torily that the contentions of Mr. O’Brien in his book are hardly 
warranted by the facts; in fact, I think in Doctor Hill's testimony 
there {is an intimation that he does not—he is unable to accept all 
the claims made along that line. So I will omit that and leave 
that to this other witness. 
A very important witness 'has been unable to come to Washington, 
who has made some additional studies of this colonial population, 
and the various claims made by some of the hyphenated societies 
regarding these national origins. I do not know whether he can 
come here before Monday. If he could not come here I would like 
to introduce into the record his statement. without reading it, on 
that point. 
Senator Rep. Can you have him here Monday? 
Mr. Trevor. I telephoned him this morning, and there seems to 
be some difficulty about whether he can at all leave. He is a lawyer 
and is engaged in some case or other, and I am not sure he can get 
away. But if he is unable to come, possibly you, Senator, could in- 
troduce his statement on that question at a later date or allow me 
to return. 
Senator Rep. I would very much rather have him here for ex- 
amination, if it is possible. 
The CuarrmaN. Who is the gentleman in question, if you please? 
Mr. Trevor. It is Mr. Edward R. Lewis. 
Senator Rep. Where does he live? 
Mr. Trevor. In Chicago. If you determine to go on Monday—— 
The Cramman. Is he the gentleman, Mr: Trevor. who has written 
that very interesting work? 
Mr. Trevor. He is the author of America, Nation or Confusion, 
and, as I say, he is an expert on that question. 
While not strictly relevant, if I may, I have with me some studies 
being made under my supervision by a research student. Miss Strain.