Grand Slams by Pitchers

Here is a list of all the grand slams hit by pitchers since 1954:

Date	Batter	Tm	Opp	Pitcher	Inn	Score
4/22/1956	Don Larsen	NYY	BOS	Frank Sullivan	4	2-1
7/10/1958	Lew Burdette	MLN	@LAD	Johnny Podres	4	0-0
4/15/1959	Bob Grim	KCA	@CHW	Barry Latman	3	4-0
8/1/1959	Bob Purkey	CIN	CHC	John Buzhardt	3	5-2
8/14/1960	Camilo Pascual	WSH	@NYY	Bob Turley	6	1-1
8/9/1961	Don Drysdale	LAD	MLN	Don Nottebart	2	1-1
5/30/1962	Pedro Ramos	CLE	@BAL	Chuck Estrada	6	3-0
8/2/1962	Art Mahaffey	PHI	@NYM	Craig Anderson	3	2-1
5/31/1963	Orlando Pena	KCA	WSA	Claude Osteen	5	4-3
7/15/1963	Carl Willey	NYM	HOU	Ken Johnson	2	1-2
4/27/1965	Camilo Pascual	MIN	@CLE	Stan Williams	1	3-0
7/20/1965	Mel Stottlemyre	NYY	BOS	Bill Monbouquett	5	2-1
9/29/1965	Bob Gibson	STL	@SFG	Gaylord Perry	8	4-0
7/3/1966	Tony Cloninger	ATL	@SFG	Bob Priddy	1	3-0
7/3/1966	Tony Cloninger	ATL	@SFG	Ray Sadecki	4	9-0
8/13/1966	Earl Wilson	DET	@BOS	Dan Osinski	7	6-1
5/20/1967	Jack Hamilton	NYM	STL	Al Jackson	2	0-0
6/1/1967	John O'Donoghue	CLE	@DET	Denny McLain	6	2-0
5/5/1968	Gary Peters	CHW	NYY	Al Downing	4	1-0
7/28/1968	Al McBean	PIT	STL	Larry Jaster	5	3-1
8/26/1968	Dave McNally	BAL	OAK	Chuck Dobson	1	3-0
7/9/1969	Fred Talbot	SEP	CAL	Eddie Fisher	6	3-0
9/4/1970	Mike Corkins	SDP	@CIN	Jim Merritt	4	3-0
5/11/1971	Steve Dunning	CLE	OAK	Diego Segui	2	1-0
8/28/1971	Rick Wise	PHI	SFG	Don McMahon	7	3-3
9/16/1972	Burt Hooton	CHC	NYM	Tom Seaver	3	4-1
7/26/1973	Bob Gibson	STL	NYM	John Strohmayer	5	6-1
8/21/1973	Rick Wise	STL	@ATL	Roric Harrison	3	3-0
6/24/1974	Jim Lonborg	PHI	@MON	Chuck Taylor	3	4-0
7/6/1977	Don Stanhouse	MON	@CHC	Bill Bonham	2	1-1
9/27/1977	Larry Christenson	PHI	@CHC	Dennis Lamp	7	7-2
8/26/1979	Bruce Kison	PIT	@SDP	Bob Shirley	2	1-0
10/1/1980	Enrique Romo	PIT	@NYM	Roy Lee Jackson	8	6-3
9/11/1982	Scott Sanderson	MON	@CHC	Randy Martz	3	3-1
5/15/1984	Joaquin Andujar	STL	ATL	Jeff Dedmon	8	5-1
5/16/1984	Steve Carlton	PHI	@LAD	Fernando Valenzu	4	1-1
9/12/1985	Don Robinson	PIT	CHC	Warren Brusstar	8	6-2
8/10/1986	Bob Forsch	STL	PIT	Mike Bielecki	5	1-0
5/29/1995	Chris Hammond	FLA	HOU	Shane Reynolds	2	0-2
6/27/1995	Denny Neagle	PIT	@CHC	Jim Bullinger	6	2-2
8/25/1995	Jeff Juden	PHI	LAD	John Cummings	4	10-2
9/7/1996	Donovan Osborne	STL	SDP	Andy Ashby	5	1-1
7/20/1998	Kevin Tapani	CHC	@ATL	Denny Neagle	3	1-0
9/2/1998	Kent Mercker	STL	@FLA	Jesus Sanchez	4	3-0
5/24/2000	Shawn Estes	SFG	MON	Mike Johnson	5	7-0
9/29/2001	Denny Neagle	COL	MIL	Jimmy Haynes	4	9-6
6/2/2002	Robert Person	PHI	MON	Bruce Chen	1	3-0
7/7/2006	Dontrelle Willis	FLA	@NYM	Jose Lima	4	3-0
6/23/2008	Felix Hernandez	SEA	@NYM	Johan Santana	2	0-0
9/22/2008	Jason Marquis	CHC	@NYM	Jonathon Niese	4	2-2
10/1/2009	Chris Carpenter	STL	@CIN	Kip Wells	2	1-0

UPDATE: Two pitchers have hit postseason grand slams. Both were on the same team in the same year. On October 3, 1970, Baltimore's Mike Cuellar hit one off Minnesota's Jim Perry in Game 1 of the ALCS. Ten days later, Dave McNally hit one in Game 3 of the World Series off Cincinnati's Wayne Granger.