<Tr> <Td> Gen. John J. Pershing Boyhood Home State Historic Site </Td> <Td> Linn </Td> <Td> 2.69 acres </Td> <Td> 1.09 ha </Td> <Td> 1952 </Td> </Tr> <Tr> <Td> Harry S Truman Birthplace State Historic Site </Td> <Td> Barton </Td> <Td> 2.51 acres </Td> <Td> 1.02 ha </Td> <Td> 1957 </Td> </Tr> <Tr> <Td> Hunter - Dawson State Historic Site </Td> <Td> New Madrid </Td> <Td> 19.80 acres </Td> <Td> 8.01 ha </Td> <Td> 1967 </Td> </Tr> <Tr> <Td> Iliniwek Village State Historic Site </Td> <Td> Clark </Td> <Td> 127.49 acres </Td> <Td> 51.59 ha </Td> <Td> 1992 </Td> </Tr>

How many national parks are in the state of missouri