Acts 16:30-34
30and brought them out and said, Sirs, what must I do to be saved? 31And they said, Believe on the Lord Jesus, and thou shalt be saved, thou and thy house. 32And they spake the word of the Lord unto him, with all that were in his house. 33And he took them the same hour of the night, and washed their stripes; and was baptized, he and all his, immediately. 34And he brought them up into his house, and set food before them, and rejoiced greatly, with all his house, having believed in God.
Scripture Testimony Index stories for this passage
A whole family is gradually brought to Christ. Each of them converted at different point, from the youngest to the grandmother.