Ethnicity: Irish (paternal grandmother), English, some German, distant Welsh. Gregory Peck was an American actor. His paternal grandmother was Irish. His other ancestry is English, some German, and distant Welsh.atherine Ashe was born in County Kerry, Ireland. Gregoryâs maternal grandparents were John Daggett Ayers II (the son of William Henry Ayers and Elizabeth Maria Daggett) and Kathryn Elizabeth Forse/Force (the daughter of Albert Thomas Forse and Catherine Woodruff).
The length of a fluorescent light bulb is measured from the back of the socket on one end of the bulb to the back of the socket on the other end. The bulbs are labeled according to the diameter and the length. Linear tubes range in length from 6 to 96 inches and fit into slightly longer fixtures.
Linear fluorescent light bulbs are measured in two ways length and diameter. The length is measured from the end the pins. The most common sizes in length for T12's and T8's are 12, 15, 18, 24, 36 and 48 inches long. Howerver, T5 light bulbs are metric and standard sizes are not the same as T12 and T8. Some of their common sizes are around 22, 34 and 46 inches. The second measurement is the diameter of the light bulb. Fluorescent tube light bulbs are measured in 1/8 of inch increments. So a T12 light bulb is 12 x 1/8 of an inch, which equals 1 1/2 inches in diameter (T8 equals an inch and T5 equals 5/8 of an inch)