FindMyPast has details of the Liguria arriving Aug 1886.
An original document shows the family listed with only their names recorded - John, Rob't, Agnes, James, Agnes.
FindMyPast transcripts only (no sight of the original) has details of -
Robert 23, Robert 7, John 34, John 27, James 3, Agnes 34, Agnes 31, Agnes 3
However, checking the original passenger list I cannot find 2 John Olivers or 2 Agnes Olivers to account for the 2 transcriptions?