1.  Marriage Record:

2.  1930 Census Every-Name-Index/Images (online at Ancestry.com, Image #32 of 44):  813 N O'Brien St., South Bend City (Ward 2), Portage Twp., St. Joseph Co., IN, Roll 626, p. 43B, SN 16B, ED 71-20, SD 2, enumerated 22 __ 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).
1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	24	25	26	27	28	29	30	31	32
*	813	343	360	Stropp George	Head	R	30	R	N	M	W	23	M	18	N	Y	IN	IN	IN	Y	Manager	Chain Store	W	Y		N
				______ Edna	Wife					F	W	24	M	19	N	Y	IN	IN	IN	Y	None
*N O Brien St

It appears that it was originally Stroup, then someone wrote over it, "Stropp."

3a.  Anon.  29 Jan 2009.  "Obituary: George R. Stroup." South Bend Tribune, South Bend, IN (transcription courtesy of Sue Gates):

George R. Stroup  June 25, 1906 - Jan. 27, 2009 SOUTH BEND - George R. Stroup, 102, passed away at 3:55 a.m. Tuesday, January 27, in the Sanctuary at St. Joseph's.  Mr. Stroup was born on June 25, 1906, in LaPorte County, and had resided in the Michiana [Berrien Co., MI] area his lifetime.  On July 27, 1924, in South Bend, he married the former Edna M. Milliken, who preceded him in death on June 11, 1996.  He is survived by two nieces, Linda Marlow of Boise, Idaho, and Vada Miller of South Bend.  Mr. Stroup retired in 1965 as owner of Stroup Welding and Spring Shop.  He started the business in 1939.  He was a wonderful man who loved to golf, fish and hunt.  He was a former Masonic Lodge member in New Carlisle, and a member of the Bowlers Country Club.  He also served 50 years on the board at Mount Pleasant Cemetery. IN LOVING MEMORY The best remedy for those who are afraid, lonely or unhappy is to go outside, somewhere where they can be quiet, alone with the heavens, nature and God. Because only then does one feel that all is as it should be and that God wishes to see people happy, amidst the simple beauty of nature. The family ask that all memorial contributions be made to the Lydick United Methodist Church, 26510 W. Edison Road, South Bend, IN 46628.  There will be no visitation or services at this time.  A memorial service will be held at a later date.  Burial took place at 10 a.m. Wednesday, Jan. 28, at Mount Pleasant Cemetery, South Bend.  The HANLEY & Sons "Southwest Chapel" Funeral Home handled arrangements and extend its deepest sympathy and heartfelt prayers to the families of Mr. Stroup.

3b.  Anon.  30 Jan 2009.  "Obituary: George R. Stroup." South Bend Tribune, South Bend, IN (transcription courtesy of Sue Gates):

George R. Stroup  June 25, 1906 - Jan. 27, 2009 SOUTH BEND - George R. Stroup, 102, passed away at 3:55 a.m. Tuesday in the Sanctuary at St. Joseph's.  He is survived by two nieces, Linda Marlow of Boise, Idaho and Vada Miller of South Bend.  Mr. Stroup retired in 1965 as owner of Stroup Welding and Spring Shop.  He started the business in 1939. Their will be no visitation or services at this time.  A Memorial services will be held at a later date.  Burial took place at 10 a.m. Wednesday, Jan. 28 at Mount Pleasant Cemetery, South Bend.  The HANLEY & Sons Funeral Home handled arrangements.

4.  Emails from Susan M. "Sue" (Gates) Davis.  Also her web site:  Gates, VanderWerf, Davis, Stroup Genealogy.