Can we use adverb phrase with conjunction plus noun phrase?

[eipjoo]

I could not remember him; but I knew that he was my own uncle—my mother’s brother—that he had taken me when a parentless infant to his house; and that in his last moments he had required a promise of Mrs. Reed that she would rear and maintain me as one of her own children. (Jane Eyre)

**
Can we use adverb phrase like the highlighted: conjunction plus noun phrase?