two birth notices - may be two people and hence two James and Mary Logan couples:

Logan Sarah S., b/f, 10 June 1887, born in Acc., d/o Logan, James, oysterman, living in Acc., & Mary. Logan, Geo. E., brother, g/info.65

Logan, Sadie, C/f, 25 Nov 1886, in Acc., d/o Logan, James, oysterman living in Acc., & Mary, Father g/info.65