4 of the 6 wines I brought were PS that fit that theme (have no fear, I have plenty more old bottles).
Here are her notes on those bottles:
1979 Sebastiani Vineyards Petite Sirah Proprietor’s Reserve: Still fairly dark for an old wine. No fruit on nose. Chocolate, raisin, little port like on the nose, something plasticy, thin in the mouth. Past its prime.
1990 Mirassou Vineyards Petite Sirah: Blueberry, red fruit, tart, smoky, chocolate, cranberry juice, raisins. Really nice.
1997 Markham Petite Sirah: Indistinguishable dark fruit on the nose, sweet fruit, raisin, blue fruit.
1999 Kent Rasmussen Petite Sirah Leeds-Chavez Vineyard: Blueberry, chocolate, caramel, perfumey, spice, nice fruit, tasty, well done.