Tuesday, November 5, 2019

Gerald Ford Family Tree - Ancestry and Genealogy

Gerald Ford Family Tree - Ancestry and Genealogy President Gerald Rudolph Ford was born Leslie Lynch King, Jr. on 14 July 1913, in Omaha, Nebraska. His parents, Leslie Lynch King and Dorothy Ayer Gardner, separated shortly after the birth of their son and were divorced in Omaha, Nebraska on 19 December 1913. In 1917, Dorothy married Gerald R. Ford in Grand Rapids, Michigan. The Fords began calling Leslie by the name Gerald Rudolff Ford, Jr., although his name wasnt legally changed until December 3, 1935 (he also changed the spelling of his middle name). Gerald Ford Jr. grew up in Grand Rapids, Michigan, with his younger half-brothers, Thomas, Richard and James. Gerald Ford Jr. was a star lineman for the University of Michigan Wolverines football team, playing center for national championship teams in 1932 and 1933. After he graduated from Michigan in 1935 with a B.A. degree, he turned down several offers to play professional football, instead opting for an assistant coachs position while studying law at Yale University. Gerald Ford eventually became a member of Congress, Vice President, and the only President not elected to the office. He is also the longest living ex-president in American history, dying at age 93 on 26 December 2006. Tips for Reading This Family Tree First Generation: 1. Leslie Lynch King Jr. (aka Gerald R. Ford, Jr.) was born on 14 July 1913, in Omaha, Nebraska and died on 26 December 2006 at his home in Rancho Mirage, California. Gerald Ford, Jr. married Elizabeth Betty Anne Bloomer Warren on 15 October 1948 at Grace Episcopal Church, Grand Rapids, Michigan. They had several children: Michael Gerald Ford, born 14 March 1950; John Jack Gardner Ford, born 16 March 1952; Steven Meigs Ford, born 19 May 1956; and Susan Elizabeth Ford, born 6 July 1957.   Second Generation (Parents): 2. Leslie Lynch KING (Gerald Ford Jr.s father) was born on 25 July 1884 in Chadron, Dawes County, Nebraska. He married twice - first to President Fords mother, and later in 1919 to Margaret Atwood in Reno, Nevada. Leslie L. King, Sr. died on 18 February 1941 in Tucson, Arizona and is buried in Forest Lawn Cemetery, Glendale, California. 3. Dorothy Ayer GARDNER was born on 27 February 1892 in Harvard, McHenry County, Illinois. After her divorce from Leslie King, she married Gerald R. Ford (b. 9 December 1889), son of George R. Ford and Zana F. Pixley, on 1 February 1917 in Grand Rapids, Michigan. Dorothy Gardner Ford died 17 September 1967 in Grand Rapids, and is buried with her second husband in Woodlawn Cemetery, Grand Rapids, Michigan. Leslie Lynch KING and Dorothy Ayer GARDNER were married on 7 September 1912 at Christ Church, Harvard, McHenry County, Illinois and had the following children: 1 i. Leslie Lynch KING, Jr.Third Generation (Grandparents):4. Charles Henry KING was born on 12 March 1853 in Perry Township, Fayette County, Pennsylvania. He died on 27 February 1930 in Los Angeles, California and is buried with his wife in Forest Lawn Cemetery, Glendale, California.5. Martha Alice Porter was born 17 November 1854 in Indiana and died on 14 July 1930 in Glendale, Los Angeles Co., California. She is buried with her husband in Forest Lawn Cemetery of that county.Charles Henry KING and Martha Alicia PORTER were married after 2 June 1882 in Cook County, Illinois and had the following children:i. Gertrude M. KING was born abt. 1881 in Illinois (married Robert H. Knittle)ii. Charles B. KING was born abt. September 1882 in Chadron, Dawes Co., Nebraska2. iii. Leslie Lynch KINGiv. Savilla KING was born abt. September 1885 in Chadron, Dawes Co., Nebraska (married Edward Pettis)v. Marietta H. KING was born abt. July 1895 in Chadron, Dawes Co., Nebraska (married Giles Vernon Kel logg)6. Levi Addison GARDNER was born on 24 April 1861 at Solon Mills, McHenry County, Illinois. He died on 9 May 1916 in Grand Rapids, Michigan.7. Adele Augusta Ayer was born on 2 July 1867 in Youngstown, Mahoning County, Ohio and died on 10 August 1938 in Los Angeles, California.Levi Addison GARDNER and Adele Augusta AYER were married on 23 October 1884 in Harvard, McHenry County, Illinois and had the following children:3. i. Dorothy Ayer GARDNERii Tannisse Ayer GARDNER was born 4 March 1887 in Harvard, Illinois. She married Clarence Haskins James on 5 September 1908 in Harvard, Illinois and died on 14 April 1942.

Saturday, November 2, 2019

X-ray Fluorescence Essay Example | Topics and Well Written Essays - 1500 words

X-ray Fluorescence - Essay Example J. Moseley number elements in 1913 through the observation of K-line transitions as observed in X-ray spectrum. This formed the basis of element identification through X-ray fluorescence spectroscopy by considering the relationship between the atomic number and the frequency. X-Ray fluorescence, XRF refers to the emission of characteristic secondary, also referred to as fluorescent X-rays by bombarding a material with X-rays at high energy or gamma rays so that the material gets excited. The wavelength of X-rays range between 50 and 100 A related to energy in the relationship: E = h? where h is Planck constant, 6.62 * 10-24 and ? is the frequency in Hertz. High energy X-rays would be required for XRF as the soft X-rays get absorbed by the target element, with the absorption edges depending on ionisation energies of the respective electrons, unique to each element. While the energy dispersive XRF, EDXRF methodology detects all elements from Na through to U, the wavelength dispersive X RF, WDXRF detects down to Be (Shackley 34). How XRF Works When the atoms of the target material absorb the high energy photons from the X-rays or gamma-rays, the electrons at the inner shell would be ejected from the atom transforming them to photoelectrons. As a result, the atom would be left at an excited state having a vacancy in its inner shell. The outer shell electrons would then fall into this resultant vacancy in the process emitting photons whose energy equals the difference in energy between the two states. It would be appreciated that each element has its unique energy level set, implying that each element would emit characteristic pattern of X-rays unique to itself which Sharma (527) refers to as characteristic X-rays. With increase in the concentration of the corresponding element, there would also be an increase in the X-ray intensity. This phenomenon also applies in the quantitative analysis of elements through the production of optical emission spectra. With characte ristic X-rays resulting from transition between the energy levels in an atom, the electrons that transition from energy level Ei to Ej would emit X-rays with energy Ex = Ei – Ej. With each element having unique atomic energy level set, a unique X-rays set would be emitted characteristic of the element (Sharma 526). Considering Bohr’s atomic model (see fig. 1), with atomic levels designated as K, L, M and so forth, each with additional sub-shells, a transition between these shells would result in the emission of characteristic X-rays. Fig. 1. Bohr’s atomic model from Sharma (527) As such, M X-ray would result from transition to M shell, so would K X-ray be a result of transition to K shell. K?1 X-ray would result from an electron dropping from M3 shell to fill in a vacancy in the K shell (see fig. 2). The emitted X-ray would have energy EX-ray = EK – EM3. Figure 2: X-ray line labelling from Bounakhla and Tahri (12) Sources According to Bounakhla and Tahri (21), radioisotopes provide the simplest source for configuration since one selects a source that emits X-rays slightly above the target element’s absorption edge energy. They have found wide application due to their stability and smallness in size in the context where monochromatic and continuous sources would be required. It serves well with regard to ruggedness, reliability, simplicity and in the consideration of cost of equipment. For safety, emissions would be limited to approximately 107 photons. The activity would be described in terms of disintegration rates of the radioisotopes where this activity would decrease from initial activity, A0 to final activity At for a duration of time, t. At = A0e(-0.693t/T?) where T? is the