1.  Marriage Record:

2.  1930 Census Every-Name-Index/Images (online at Ancestry.com, Image #45-46 of 47):  1225 5th St. SE, Minneapolis City (Ward 2, Block 153), Hennepin Co., MN, Roll 1089 (Book 2), pp. 68A-68B, SN 23A-23B, ED 27-18, SD 7, enumerated 11 Apr 1930, official enumeration date 1 Apr 1930 (extracted by Diana Gale Matthiesen):¤•

1930:  for an explanation of the column headings, please see What the Numbers in the Federal Census Mean (missing columns contained no data).
Ln	1	2	3	4	5	6	7	8	10	11	12	13	14	16	17	18	19	20	24	25	26	27	28	30
50	*	1225	238	316	Straub Lee J	Head	R	$40	N	M	W	26	S	N	Y	MN	MN	MN	Y	Bookkeeper	Auto company	W	Y	N
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73	*	1225	238	316	Bumgardner Anna M	Aunt				F	W	65	Wd	N	Y	MN	MN	Ger	Y	None
*1225 5th St. S.E.

The enumerater had a note in the margin next to Lee's record saying, "See L. 73"; there was a note in the margin next to Anna's records saying, "See line 50."  Levi's father, Samuel, had no sister named Anna, so she must be a sister of Levi's mother, which means both of Anna's parents were born in Germany, not just her mother.

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

Name	Birth	Death	Last Residence	SSN	Issued	Post-em
Levi STRAUB	14 May 1903	Aug 1964	(Minnesota)	469-09-6788	MN	Yes
Lois STRAUB	15 May 1908	Feb 1984	55435 (Minneapolis, Hennepin, MN)	472-10-6929	MN	Yes
Gary STRAUB	01 Aug 1931	May 1987	55418 (Minneapolis, Hennepin, MN)	476-64-5846	MN	Yes

4.  Minnesota State Department of Health.  Minnesota Death Certificates Index, 1908-2002 (online at the Minnesota Historical Society web site and at Ancestry.com):

Name:	STRAUB, (Lee) Levi G.	STRAUB, Lois H.	STRAUB, Gary Lee	STRAUB, Michael Steven
Date of Birth:	05/14/1903	05/15/1908	08/01/1931	07/01/1943
Place of Birth:	Minnesota	Out of State	Minnesota	Minnesota
Date of Death:	08/05/1964	02/08/1984	05/11/1987	11/14/1991
County of Death:	Hennepin	Hennepin	Hennepin	Hennepin
Mother Maiden Name:	Briegel	Oakley	Hall	Hall
CertID#:	1964-MN-026029	1984-MN-003346	1987-MN-012140	1991-MN-029491

5.  Family Group Sheet compiled by Terry Straub.

6.  Email from Daniel Straub.