1.  Marriage Record:

2.  1900 Census Index/Images (online at Genealogy.com, Image #13-14 of 28 — indexed "Charles L. Percival," but I find his middle initial unreadable):  Jericho Town, Chittendon Co., VT, Roll 1691 (Book 1), pp. 62A-62B, SN 7, SD 274, ED 80, enumerated 14/15 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	16	17	19	20	22	23	24	25	26	27
163	167	Percival Charles	Head	W	M	Aug 1861	38	M	5			VT	VT	VT			Railway Agent	0	Y	Y	Y	O	F	H
[next page]
		________ Sarah J	Wife	W	F	Jan 1875	25	M	5	1	1	Eng	Eng	Eng	1893	7			Y	Y	Y
		Nattress Herbert	Nephew	W	M	Oct 1896	3	S				VT	Eng	Eng					N	N	Y

Where's Bessie?  It says Sarah has one surviving child.  The enumerator must have accidentally left her out.

3.  1910 Census Index/Images (online at Ancestry.com, Image #32 of 35):  Jericho Village, Chittenden Co., VT, Roll T624_1614, p. 163A, SN 17A, SD ?, ED 83, enumerated 9 May 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	9	10	11	12	13	14	15	17	18	19	20	21	22	23	24	25	26	27	28	29
299	317	Percival Charles E	Head	M	W	48	M	14			VT	VT	VT		Eng	Station Agent	Rail Road	W	N	0	Y	Y		O	F	F	200
		________ Sarah J	Wife	F	W	37	M	14	2	2	Eng	Eng	Eng	1893	Eng	None					Y	Y
		________ Bessie L	Dau	F	W	13	S				VT	VT	Eng		Eng	None					Y	Y	Y
		________ Wallis C	Son	M	W	8	S				VT	VT	Eng			None							Y