Photo 1: Elsie Winduss is in the centre in the dark swimming costume in the first photo and her bridesmaid Grace is probably to Elsie's left.
Photo 2: The two ladies in the second photo appear to also be in the first photo.
Photo 3: Elsie Winduss is at left in the third photo which looks like the same house as the first photo.
Photo 4: Is labelled Port Arlington 1928. Elsie is in the middle and on the right is probably her bridesmaid Grace.