The strongest evidence might be a Catholic statement of faith signed by John Shakespeare, found in 1757 in the rafters of his former house in Henley Street.
1	The	the	DET	RD	Definite=Def|PronType=Art	3	det	_	_
2	strongest	strongest	ADJ	A	Degree=Sup	3	amod	_	_
3	evidence	evidence	NOUN	S	Number=Sing	8	nsubj	_	_
4	might	may	AUX	VM	Mood=Ind|Person=3|Tense=Past|VerbForm=Fin	8	aux	_	_
5	be	be	AUX	V	VerbForm=Inf	8	cop	_	_
6	a	a	DET	RI	Definite=Ind|Number=Sing|PronType=Art	8	det	_	_
7	Catholic	Catholic	ADJ	A	Degree=Pos	8	amod	_	_
8	statement	statement	NOUN	S	Number=Sing	0	root	_	_
9	of	of	ADP	E	_	10	case	_	_
10	faith	faith	NOUN	S	Number=Sing	8	nmod	_	_
11	signed	sign	VERB	V	Tense=Past|VerbForm=Part	8	acl	_	_
12	by	by	ADP	E	_	13	case	_	_
13	John	John	PROPN	SP	_	11	obl	_	_
14	Shakespeare	Shakespeare	PROPN	SP	_	13	flat	_	SpaceAfter=No
15	,	,	PUNCT	FF	_	16	punct	_	_
16	found	find	VERB	V	Tense=Past|VerbForm=Part	11	conj	_	_
17	in	in	ADP	E	_	18	case	_	_
18	1757	1757	NUM	N	NumType=Card	16	obl	_	_
19	in	in	ADP	E	_	21	case	_	_
20	the	the	DET	RD	Definite=Def|PronType=Art	21	det	_	_
21	rafters	rafter	NOUN	S	Number=Plur	16	obl	_	_
22	of	of	ADP	E	_	25	case	_	_
23	his	his	DET	AP	Poss=Yes|PronType=Prs	25	nmod:poss	_	_
24	former	former	ADJ	A	Degree=Pos	25	amod	_	_
25	house	house	NOUN	S	Number=Sing	21	nmod	_	_
26	in	in	ADP	E	_	28	case	_	_
27	Henley	Henley	PROPN	SP	_	28	nmod	_	_
28	Street	street	NOUN	S	Number=Sing	25	nmod	_	SpaceAfter=No
29	.	.	PUNCT	FS	_	8	punct	_	_
