The Orthodox Creed is a General Baptist confession written in 1678. Article 44 deals with the state of salvation of those infants and little children who die:
Of Children dying in Infancy.
We do believe, that all little children, dying in their infancy, viz. before they are capable to chuse [sic] either good or evil [Isa 7:16; 8:4], whether born of believing parents, or unbelieving parents, shall be saved by the grace of God, and merit of Christ their redeemer, and work of the Holy Ghost [2 Sam 12:19-23; Ezek 18:4-21; 1 Kgs 14:13], and so being made members of the invisible church, shall enjoy life everlasting [Matt 18:2-4; Jer 31:29-30; Deut 1:39]; for our Lord Jesus saith, of such belongs the kingdom of heaven [Matt 19:13-14; Mark 10:13-15]. Ergo, we conclude that that opinion is false, which saith, that those little infants dying before baptism, are damned.*
* William Lumpkin, Baptist Confessions of Faith (Valley Forge: Judson Press, 1959), 330-31.