Our subject is possibly Francis M. STRAUB (b. 1857/8 in St. Louis, MO), son of these parents:
Father:  Dionysius / Dennis R. STRAUB, b. Baden
Mother:  Catharine "Kate" __?__, b. France (probably Alsace)

The only other obvious possibility is the Frank STRAUB (b. 1857/8, MO), son of these parents:
Father:  Julius STRAUB, b. Baden
Mother:  Eugennie __?__, b. MO

1.  Marriage Record:

2.  1880 Census Every-Name-Index/Images (online at Ancestry.com, Image #35 of 71):  Helena, Lewis & Clark Co., MT, Roll T9_742, p. 287C, PN 35, SD 78, ED 18, enumerated 11 Jun 1880, official enumeration date 1 Jun 1880 (extracted by Diana Gale Matthiesen):¤•

1880:  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	9	13	24	25	26
352	364	Straub Frank	W	M	22	/	Butcher	MO	MO	MO

3.  1890 Census:  the 1890 Census Population Schedules were destroyed.

4.  1900 Census Every-Name-Index/Images (online at Ancestry.com, Image #15 of 31):  1801 Taylor Ave., City of St. Louis (Ward 27), St. Louis Co., MO, Roll T623_900, p. 181A, SN 8, SD 11, ED 402, enumerated 5 Jun 1900, official enumeration date 1 Jun 1900 (extracted by Diana Gale Matthiesen):¤•

1900:  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	19	20	22	23	24	25	27
*	1801	115	157	Straub Frank	Head	W	M	Jun 1858	41	M	12			MO	Ger	Fra	Butcher	0	Y	Y	Y	R	H
				______ Emma F	Wife	W	F	Sep 1858	41	M	12	3	3	KS	WV	KY	Keeping House		Y	Y	Y
				Riddle Hayden E	StepSon	W	M	Oct 1876	23	M	5			MO	MO	KS	Bill Clerk	0	Y	Y	Y
				______ Luther W	StepSon	W	M	Mar 1882	18	M	1			MT	MO	KS	Dry Goods Clerk	0	Y	Y	Y
*Taylor Ave

5.  1910 Census Index/Images (online at Ancestry.com, Image #9 of 70):  1409 14th St., Bakersfield City (Precinct 2), 6th Twp., Kern Co., CA, Roll T624_78 (Part 2), p. 77A, SN 5A, SD 8, ED 31, enumerated 18 April 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	10	11	12	13	14	17	18	19	20	21	22	23	24	26	28
*	1409	95	100	Straub Emma F	Head	F	W	51	Wd	3	3	MO	WV	KY	Eng	None					Y	Y	R	H
				Riddle Adair G	Son	M	W	30	S			MT	MO	MO	Eng	Station Engineer	Railroad yards	W	N	0	Y	Y
				Riddle Luther W	Son	M	W	28	S			MT	MO	MO	Eng	Electrician	Railroad	W	N	0	Y	Y
*14th St

6.  1920 Census Every-Name-Index/Images (online at Ancestry.com, Image #16 of 40):  827 Nile Street, Bakersfield City (Ward 1), Third Twp., Pct. 46, Kern Co., CA, Roll T625_100 (Part 1), p. 40B, SN 8B, SD 29, ED 90, enumerated 7 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).
1	2	3	4	5	6	7	9	10	11	12	17	18	19	21	23	25	26	27	28
*	829	179	183	Straub Emma F	Head	R	F	W	54	Wd	Y	Y	KS	TN	KY	Y	None
				Riddle Adair G	Son		M	W	40	S	Y	Y	MT	MO	KS	Y	Stationary Engineer	Brewery	W
*Nile Street

7.  1930 Census Every-Name-Index/Images (online at Ancestry.com):  not found.