1.  Marriage Record:

2.  1900 Census Every-Name-Index/Images (online at Ancestry.com):  Paul TRAUB (æ 9, b. Jun 1890, IA/Ger/Switz) is living in Reinbeck, Black Hawk Twp., Grundy Co., IA, with his parents (q.v.).

3.  1910 Census Every-Name-Index/Images (online at Ancestry.com, Image #26 of 42):  Harvey City (Ward 1), Wells Twp., Wells Co., ND, Roll T624_1149, p. 137B, SN 13B, SD 2, ED 212, enumerated 27 Apr 1910, official enumeration date 15 Apr 1910 (extracted by Diana Gale Matthiesen):¤•

1910:  for an explanation of the column headings, please see What the Numbers in the Federal Census Mean (missing columns contained no data).
1	2	3	4	5	6	7	8	12	13	14	17	18	19	20	21	22	23	24
253	255	Traub Paul	none	M	W	20	S	Iowa	Ger German	Switz Ger	Eng	Teacher	Public School	W	N	12	Y	Y

Boarding in the home of a clergyman and his family.

4.  1920 Census Every-Name-Index/Images (online at Ancestry.com, Image #19 of 28):  Henning Village, Otter Tail Co., MN, Roll T625_847, p. 268A, SN 10A, SD 9, ED 148, enumerated 21 Jan 1920, official enumeration date 1 Jan 1920 (extracted by Diana Gale Matthiesen):¤•

1920:  for an explanation of the column headings, please see What the Numbers in the Federal Census Mean (missing columns contained no data).

2

3

4

5

6

7

9

10

11

12

17

18

19

21

22

23

24

25

26

27

28

X

74

82

Traub John F

Head

R

M

W

38

M

Y

Y

Illinois

Wuerttemberg Ger

German

Berne Canton S??

German

Y

Vice President

Land office

Em

_____ Clara M

Wife

F

W

24

M

Y

Y

Minnesota

Denmark

Danish

Norway

Norwegian

Y

None

_____ John L

Son

M

W

5

S

Minnesota

Illinois

Minnesota

None

[next page]

Traub Hamilton P

Bro

M

W

29

S

Y

Y

Iowa

Wuerttemberg Ger

German

Berne Canton S??

German

Y

3d Vice President

Real estate office

W

5.  1930 Census Every-Name-Index/Images (online at Ancestry.com):  can't find.

6.  World War I Selective Service System Draft Registration Cards, 1917-18.  Microfilm Series M1509 (4277 rolls), National Archives and Records Administration, Washington, DC (card images and index online at Ancestry.com, Image #87 of 143 — indexed mis-linked to image):

Microfilm Roll | Form | No:		1984804 | 998 | 41
1	Name in full | Age in yrs:	Paul Traub | 26
2	Home Address:	Preston Va
3	Date of Birth:	June 18 1890
4	Are you (1) a natural born citizen…	Natural born
5	Where were you born:	Crozier Iowa USA
6	If not a citizen, of what country…
7	What is your present trade, occupation…	Farming
8	By whom employed:
	Where employed:	Preston Va
9	Have you [dependents]?:	No
10	Married or Single | Race:	Single | Caucasian
11	What military service have you had?
12	Do you claim exemption from draft?
Signature:		Paul Traub
1	Height | Build:	Medium | Medium
2	Color of Eyes | Color of Hair | Bald:	Brown | Dark Brown | No
3	Physically Disabled:
Date of Registration:		June 5 1917
Draft Board:		Henry County, Va

7.  U.S. Selective Service System.  Registration Cards, World War II, Fourth Registration (Men born on or after April 28, 1877 and on or before February 16, 1897).  NARA, Washington, DC (online at Ancestry.com):

Microfilm Roll | Serial No. | Order No:		WW2_2243538 | 02152 | -
1	Name:	Hamilton Paul Traub
2	Place of Residence:	U.S. Hort. Station, Beltsville, P.G. Md
3	Mailing Address:	same
4	Telephone (Exchange | Number):	Warfield 4400
5	Age in Years | Date of Birth:	51 | June 18 1890
6	Place of Birth:	Crozier Iowa
7	Name and Address of Person Who Will Always Know Your Address	J.R. Magess U.S. Hort. Sta., Beltsville, P.G. Md.
8	Employer's Name and Address:	U.S. Dept. of Agriculture
9	Place of Employment of Business:	Washington, D.C.
10	Registrant's Signature:	Hamilton P. Traub
11	What military service have you had?	-
12	Do you claim exemption from draft?	-
Signature:		-
Height | Weight:		- | -
Race | Complexion:		- | -
Eyes | Hair:		- |-
Date of Registration:		-
Draft Board:		Prince Georges County, Maryland

Back sides of cards missing; note from Ancestry.com saying the problem is being rectified.

8.  CADI:  California Death Index, 1940-1997 (online at RootsWeb.com and Ancestry.com):

Last Name	First Name	Middle	Birth Date	Mother Maiden	Sex	Birth Place	Death Place (County)	Death Date	SSN	Age	Post-em
TRAUB	Hamilton	Paul	06/18/1890	GRAF	M	IA	San Diego (37)	07/14/1983	549-66-8478	93	Yes

9.  SSDI:  Social Security Death Index (online at RootsWeb.com):

Name	Birth	Death	Last Residence	SSN	Issued	Post-em
Hamilton TRAUB	18 Jun 1890	Jul 1983	92037 (La Jolla, San Diego, CA)	549-66-8478	CA	Yes

Hamilton is the only TRAUB in the database at this zipcode.

10.  Anon. Tuesday, 13 Feb 1951. Waterloo Daily Courier (Waterloo, Iowa), p. 28 (online at Ancestry.com):

New Drug Doubles Size of Plants Washington, D.C.—The story of Jack's Beanstalk may not be so fantastic after all.    Agriculture department plant scientists have found a way to double the size of your favorite rose—or grow a pumpkin so big you can't carry it to the cellar.    It's done by dousing plants with colchicine, a drug derived from autumn crocuses.    The experts say repeated applications of colchicine doubles the number of chromosomes—the tiny cells which carry heredity characteristics.    Dr. Hamilton P. Traub, who has made an exhaustive study of the effect of cholchicine on plant growth, says a plant with extra chromosomes is likely to be superior to those with a normal number, and will transmit its characteristics to future generations.    Traub says the process has succeeded on various types of plants, including corn, wheat, vegetables and shrubs.    But his outstanding achievement has been the development of a "day lily" twice as large as any ever grown before.    Under the department's treatment, plant roots now are doused in a cholchicine solution for eight hours, removed, and allowed to "recuperate" in untreated water.    After six or eight "treatments," the plant is put into the soil to pursue its normal growth—but with twice as many chromosomes as it had before.    Traub doubts that the treatment ever will be practical for most field crops because they would topple from their own weight.    But he says "the sky's the limit" on flowers and garden vegetables where artificial support can be provided.

11.  A Google search on "Hamilton Paul Traub" will pull up numerous items written by or about our subject, a noted botanist.  See especially some of his published works.

12.  Public Member Tree (online at Ancestry.com).

13.  Email from Duane Jensen, who indicates that, in the Harvard Alumni Directory for 1926, Hamilton Paul TRAUB was listed as living at 2090 Commonwealth Ave., St. Paul, MN.