A method of harvesting cancellous bone and marrow from an individual's posterior superior iliac spine using a bone press apparatus includes: creating an opening in cortical bone of the posterior superior iliac spine; accessing through the opening and loosening for extraction cancellous bone and bone marrow; inserting a suction apparatus through the opening and extracting the loosened cancellous bone and bone marrow, the suction apparatus being attached to a first lid of a collection container, the first lid of the collection container having a suction port to which a suction source is connected; disconnecting the suction source from the suction port and replacing the first lid with a second lid having a suction port and a plunger with a press head; filtering the extracted liquid by depressing the plunger; and pouring the filtered liquid through the suction port of the second lid into another cup.